diff --git a/configure.ac b/configure.ac
index 329861a291..ffc6eedcdd 100644
--- a/configure.ac
+++ b/configure.ac
@@ -324,6 +324,7 @@ AC_CHECK_TYPES([char16_t, char32_t, key_serial_t],
 ]])
 
 AC_CHECK_DECLS([IFLA_INET6_ADDR_GEN_MODE,
+                IN6_ADDR_GEN_MODE_STABLE_PRIVACY,
                 IFLA_MACVLAN_FLAGS,
                 IFLA_IPVLAN_MODE,
                 IFLA_VTI_REMOTE,
diff --git a/src/basic/missing.h b/src/basic/missing.h
index 8b977871e9..53dfa1c801 100644
--- a/src/basic/missing.h
+++ b/src/basic/missing.h
@@ -577,6 +577,9 @@ struct btrfs_ioctl_quota_ctl_args {
 
 #define IN6_ADDR_GEN_MODE_EUI64 0
 #define IN6_ADDR_GEN_MODE_NONE 1
+#endif
+
+#if !HAVE_DECL_IN6_ADDR_GEN_MODE_STABLE_PRIVACY
 #define IN6_ADDR_GEN_MODE_STABLE_PRIVACY 2
 #endif