diff --git a/src/udev/meson.build b/src/udev/meson.build
index 726bae585e..c2228c543e 100644
--- a/src/udev/meson.build
+++ b/src/udev/meson.build
@@ -28,6 +28,7 @@ libudev_core_sources = '''
         udev-watch.c
         udev-watch.h
         udev-builtin.c
+        udev-builtin.h
         udev-builtin-btrfs.c
         udev-builtin-hwdb.c
         udev-builtin-input_id.c
diff --git a/src/udev/udev-builtin-blkid.c b/src/udev/udev-builtin-blkid.c
index 202efda3fe..a0da293b55 100644
--- a/src/udev/udev-builtin-blkid.c
+++ b/src/udev/udev-builtin-blkid.c
@@ -23,7 +23,8 @@
 #include "gpt.h"
 #include "parse-util.h"
 #include "string-util.h"
-#include "udev.h"
+#include "strxcpyx.h"
+#include "udev-builtin.h"
 
 static void print_property(struct udev_device *dev, bool test, const char *name, const char *value) {
         char s[256];
diff --git a/src/udev/udev-builtin-btrfs.c b/src/udev/udev-builtin-btrfs.c
index 2e8535598d..fa6c352c30 100644
--- a/src/udev/udev-builtin-btrfs.c
+++ b/src/udev/udev-builtin-btrfs.c
@@ -11,7 +11,9 @@
 #include "fd-util.h"
 #include "missing.h"
 #include "string-util.h"
-#include "udev.h"
+#include "strxcpyx.h"
+#include "udev-builtin.h"
+#include "util.h"
 
 static int builtin_btrfs(struct udev_device *dev, int argc, char *argv[], bool test) {
         struct btrfs_ioctl_vol_args args = {};
diff --git a/src/udev/udev-builtin-hwdb.c b/src/udev/udev-builtin-hwdb.c
index befb009b5c..1978fddd14 100644
--- a/src/udev/udev-builtin-hwdb.c
+++ b/src/udev/udev-builtin-hwdb.c
@@ -9,9 +9,10 @@
 
 #include "alloc-util.h"
 #include "hwdb-util.h"
+#include "libudev-private.h"
 #include "parse-util.h"
 #include "string-util.h"
-#include "udev.h"
+#include "udev-builtin.h"
 
 static sd_hwdb *hwdb;
 
diff --git a/src/udev/udev-builtin-input_id.c b/src/udev/udev-builtin-input_id.c
index f7616987ab..4252a9a696 100644
--- a/src/udev/udev-builtin-input_id.c
+++ b/src/udev/udev-builtin-input_id.c
@@ -19,7 +19,7 @@
 #include "missing.h"
 #include "stdio-util.h"
 #include "string-util.h"
-#include "udev.h"
+#include "udev-builtin.h"
 #include "util.h"
 
 /* we must use this kernel-compatible implementation */
diff --git a/src/udev/udev-builtin-keyboard.c b/src/udev/udev-builtin-keyboard.c
index 9160a5b5d5..0e026697c1 100644
--- a/src/udev/udev-builtin-keyboard.c
+++ b/src/udev/udev-builtin-keyboard.c
@@ -1,5 +1,7 @@
 /* SPDX-License-Identifier: LGPL-2.1+ */
 
+#include <errno.h>
+#include <fcntl.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -10,7 +12,8 @@
 #include "parse-util.h"
 #include "stdio-util.h"
 #include "string-util.h"
-#include "udev.h"
+#include "strxcpyx.h"
+#include "udev-builtin.h"
 
 static const struct key_name *keyboard_lookup_key(const char *str, GPERF_LEN_TYPE len);
 #include "keyboard-keys-from-name.h"
diff --git a/src/udev/udev-builtin-kmod.c b/src/udev/udev-builtin-kmod.c
index 9436126dd8..6ed0210ee6 100644
--- a/src/udev/udev-builtin-kmod.c
+++ b/src/udev/udev-builtin-kmod.c
@@ -13,7 +13,7 @@
 
 #include "module-util.h"
 #include "string-util.h"
-#include "udev.h"
+#include "udev-builtin.h"
 
 static struct kmod_ctx *ctx = NULL;
 
diff --git a/src/udev/udev-builtin-net_id.c b/src/udev/udev-builtin-net_id.c
index 834172c388..6e46a139f3 100644
--- a/src/udev/udev-builtin-net_id.c
+++ b/src/udev/udev-builtin-net_id.c
@@ -101,14 +101,18 @@
 #include <unistd.h>
 #include <linux/pci_regs.h>
 
+#include "alloc-util.h"
 #include "dirent-util.h"
 #include "fd-util.h"
 #include "fileio.h"
 #include "fs-util.h"
+#include "libudev-private.h"
 #include "parse-util.h"
 #include "stdio-util.h"
 #include "string-util.h"
-#include "udev.h"
+#include "strv.h"
+#include "strxcpyx.h"
+#include "udev-builtin.h"
 
 #define ONBOARD_INDEX_MAX (16*1024-1)
 
diff --git a/src/udev/udev-builtin-net_setup_link.c b/src/udev/udev-builtin-net_setup_link.c
index ca8c16df0a..3384b76dc1 100644
--- a/src/udev/udev-builtin-net_setup_link.c
+++ b/src/udev/udev-builtin-net_setup_link.c
@@ -4,7 +4,7 @@
 #include "libudev-device-internal.h"
 #include "link-config.h"
 #include "log.h"
-#include "udev.h"
+#include "udev-builtin.h"
 
 static link_config_ctx *ctx = NULL;
 
diff --git a/src/udev/udev-builtin-path_id.c b/src/udev/udev-builtin-path_id.c
index 12c340110f..693b9820b8 100644
--- a/src/udev/udev-builtin-path_id.c
+++ b/src/udev/udev-builtin-path_id.c
@@ -18,9 +18,11 @@
 #include "alloc-util.h"
 #include "dirent-util.h"
 #include "fd-util.h"
+#include "libudev-private.h"
 #include "string-util.h"
+#include "strv.h"
 #include "sysexits.h"
-#include "udev.h"
+#include "udev-builtin.h"
 
 _printf_(2,3)
 static void path_prepend(char **path, const char *fmt, ...) {
diff --git a/src/udev/udev-builtin-uaccess.c b/src/udev/udev-builtin-uaccess.c
index 4ddd89dbb1..695a411a74 100644
--- a/src/udev/udev-builtin-uaccess.c
+++ b/src/udev/udev-builtin-uaccess.c
@@ -6,13 +6,14 @@
 #include <errno.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <sys/stat.h>
 
 #include "sd-login.h"
 
 #include "login-util.h"
 #include "logind-acl.h"
-#include "udev.h"
-#include "util.h"
+#include "log.h"
+#include "udev-builtin.h"
 
 static int builtin_uaccess(struct udev_device *dev, int argc, char *argv[], bool test) {
         int r;
diff --git a/src/udev/udev-builtin-usb_id.c b/src/udev/udev-builtin-usb_id.c
index 97548e92ed..aaa0636493 100644
--- a/src/udev/udev-builtin-usb_id.c
+++ b/src/udev/udev-builtin-usb_id.c
@@ -17,8 +17,9 @@
 
 #include "alloc-util.h"
 #include "fd-util.h"
+#include "libudev-private.h"
 #include "string-util.h"
-#include "udev.h"
+#include "udev-builtin.h"
 
 static void set_usb_iftype(char *to, int if_class_num, size_t len) {
         const char *type = "generic";
diff --git a/src/udev/udev-builtin.c b/src/udev/udev-builtin.c
index 956dc30ed2..6d204a46b3 100644
--- a/src/udev/udev-builtin.c
+++ b/src/udev/udev-builtin.c
@@ -5,6 +5,7 @@
 #include <string.h>
 
 #include "string-util.h"
+#include "udev-builtin.h"
 #include "udev.h"
 
 static bool initialized;
diff --git a/src/udev/udev-builtin.h b/src/udev/udev-builtin.h
new file mode 100644
index 0000000000..0a6dc63ec2
--- /dev/null
+++ b/src/udev/udev-builtin.h
@@ -0,0 +1,67 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+#pragma once
+
+#include <stdbool.h>
+
+#include "libudev.h"
+
+enum udev_builtin_cmd {
+#if HAVE_BLKID
+        UDEV_BUILTIN_BLKID,
+#endif
+        UDEV_BUILTIN_BTRFS,
+        UDEV_BUILTIN_HWDB,
+        UDEV_BUILTIN_INPUT_ID,
+        UDEV_BUILTIN_KEYBOARD,
+#if HAVE_KMOD
+        UDEV_BUILTIN_KMOD,
+#endif
+        UDEV_BUILTIN_NET_ID,
+        UDEV_BUILTIN_NET_LINK,
+        UDEV_BUILTIN_PATH_ID,
+        UDEV_BUILTIN_USB_ID,
+#if HAVE_ACL
+        UDEV_BUILTIN_UACCESS,
+#endif
+        UDEV_BUILTIN_MAX
+};
+
+struct udev_builtin {
+        const char *name;
+        int (*cmd)(struct udev_device *dev, int argc, char *argv[], bool test);
+        const char *help;
+        int (*init)(void);
+        void (*exit)(void);
+        bool (*validate)(void);
+        bool run_once;
+};
+
+#if HAVE_BLKID
+extern const struct udev_builtin udev_builtin_blkid;
+#endif
+extern const struct udev_builtin udev_builtin_btrfs;
+extern const struct udev_builtin udev_builtin_hwdb;
+extern const struct udev_builtin udev_builtin_input_id;
+extern const struct udev_builtin udev_builtin_keyboard;
+#if HAVE_KMOD
+extern const struct udev_builtin udev_builtin_kmod;
+#endif
+extern const struct udev_builtin udev_builtin_net_id;
+extern const struct udev_builtin udev_builtin_net_setup_link;
+extern const struct udev_builtin udev_builtin_path_id;
+extern const struct udev_builtin udev_builtin_usb_id;
+#if HAVE_ACL
+extern const struct udev_builtin udev_builtin_uaccess;
+#endif
+
+void udev_builtin_init(void);
+void udev_builtin_exit(void);
+enum udev_builtin_cmd udev_builtin_lookup(const char *command);
+const char *udev_builtin_name(enum udev_builtin_cmd cmd);
+bool udev_builtin_run_once(enum udev_builtin_cmd cmd);
+int udev_builtin_run(struct udev_device *dev, enum udev_builtin_cmd cmd, const char *command, bool test);
+void udev_builtin_list(void);
+bool udev_builtin_validate(void);
+int udev_builtin_add_property(struct udev_device *dev, bool test, const char *key, const char *val);
+int udev_builtin_hwdb_lookup(struct udev_device *dev, const char *prefix, const char *modalias,
+                             const char *filter, bool test);
diff --git a/src/udev/udev-event.c b/src/udev/udev-event.c
index 273bddce96..f732913d17 100644
--- a/src/udev/udev-event.c
+++ b/src/udev/udev-event.c
@@ -24,6 +24,7 @@
 #include "process-util.h"
 #include "signal-util.h"
 #include "string-util.h"
+#include "udev-builtin.h"
 #include "udev-node.h"
 #include "udev-watch.h"
 #include "udev.h"
diff --git a/src/udev/udev-rules.c b/src/udev/udev-rules.c
index 76baa0322b..4d87754042 100644
--- a/src/udev/udev-rules.c
+++ b/src/udev/udev-rules.c
@@ -28,6 +28,7 @@
 #include "string-util.h"
 #include "strv.h"
 #include "sysctl-util.h"
+#include "udev-builtin.h"
 #include "udev.h"
 #include "user-util.h"
 #include "util.h"
diff --git a/src/udev/udev.h b/src/udev/udev.h
index ac71a2c163..09bd54e965 100644
--- a/src/udev/udev.h
+++ b/src/udev/udev.h
@@ -77,63 +77,6 @@ void udev_event_execute_rules(struct udev_event *event,
                               struct udev_rules *rules);
 void udev_event_execute_run(struct udev_event *event, usec_t timeout_usec, usec_t timeout_warn_usec);
 
-/* built-in commands */
-enum udev_builtin_cmd {
-#if HAVE_BLKID
-        UDEV_BUILTIN_BLKID,
-#endif
-        UDEV_BUILTIN_BTRFS,
-        UDEV_BUILTIN_HWDB,
-        UDEV_BUILTIN_INPUT_ID,
-        UDEV_BUILTIN_KEYBOARD,
-#if HAVE_KMOD
-        UDEV_BUILTIN_KMOD,
-#endif
-        UDEV_BUILTIN_NET_ID,
-        UDEV_BUILTIN_NET_LINK,
-        UDEV_BUILTIN_PATH_ID,
-        UDEV_BUILTIN_USB_ID,
-#if HAVE_ACL
-        UDEV_BUILTIN_UACCESS,
-#endif
-        UDEV_BUILTIN_MAX
-};
-struct udev_builtin {
-        const char *name;
-        int (*cmd)(struct udev_device *dev, int argc, char *argv[], bool test);
-        const char *help;
-        int (*init)(void);
-        void (*exit)(void);
-        bool (*validate)(void);
-        bool run_once;
-};
-#if HAVE_BLKID
-extern const struct udev_builtin udev_builtin_blkid;
-#endif
-extern const struct udev_builtin udev_builtin_btrfs;
-extern const struct udev_builtin udev_builtin_hwdb;
-extern const struct udev_builtin udev_builtin_input_id;
-extern const struct udev_builtin udev_builtin_keyboard;
-#if HAVE_KMOD
-extern const struct udev_builtin udev_builtin_kmod;
-#endif
-extern const struct udev_builtin udev_builtin_net_id;
-extern const struct udev_builtin udev_builtin_net_setup_link;
-extern const struct udev_builtin udev_builtin_path_id;
-extern const struct udev_builtin udev_builtin_usb_id;
-extern const struct udev_builtin udev_builtin_uaccess;
-void udev_builtin_init(void);
-void udev_builtin_exit(void);
-enum udev_builtin_cmd udev_builtin_lookup(const char *command);
-const char *udev_builtin_name(enum udev_builtin_cmd cmd);
-bool udev_builtin_run_once(enum udev_builtin_cmd cmd);
-int udev_builtin_run(struct udev_device *dev, enum udev_builtin_cmd cmd, const char *command, bool test);
-void udev_builtin_list(void);
-bool udev_builtin_validate(void);
-int udev_builtin_add_property(struct udev_device *dev, bool test, const char *key, const char *val);
-int udev_builtin_hwdb_lookup(struct udev_device *dev, const char *prefix, const char *modalias,
-                             const char *filter, bool test);
-
 /* Cleanup functions */
 DEFINE_TRIVIAL_CLEANUP_FUNC(struct udev_event*, udev_event_unref);
 DEFINE_TRIVIAL_CLEANUP_FUNC(struct udev_rules*, udev_rules_unref);
diff --git a/src/udev/udevadm-test-builtin.c b/src/udev/udevadm-test-builtin.c
index 940d691dd7..d516492ade 100644
--- a/src/udev/udevadm-test-builtin.c
+++ b/src/udev/udevadm-test-builtin.c
@@ -6,9 +6,11 @@
 #include <stdio.h>
 #include <stdlib.h>
 
+#include "libudev-private.h"
 #include "path-util.h"
 #include "string-util.h"
-#include "udev.h"
+#include "strxcpyx.h"
+#include "udev-builtin.h"
 #include "udevadm.h"
 
 static const char *arg_command = NULL;
diff --git a/src/udev/udevadm-test.c b/src/udev/udevadm-test.c
index 462c5818f4..89d51c7775 100644
--- a/src/udev/udevadm-test.c
+++ b/src/udev/udevadm-test.c
@@ -13,6 +13,7 @@
 #include <unistd.h>
 
 #include "string-util.h"
+#include "udev-builtin.h"
 #include "udev.h"
 #include "udevadm.h"
 
diff --git a/src/udev/udevd.c b/src/udev/udevd.c
index 8f8a2fcaa8..ea1476e7dd 100644
--- a/src/udev/udevd.c
+++ b/src/udev/udevd.c
@@ -52,6 +52,7 @@
 #include "socket-util.h"
 #include "string-util.h"
 #include "terminal-util.h"
+#include "udev-builtin.h"
 #include "udev-ctrl.h"
 #include "udev-util.h"
 #include "udev-watch.h"