diff --git a/src/libsystemd/libsystemd.sym b/src/libsystemd/libsystemd.sym
index 05c3b99bd6..af4226c73a 100644
--- a/src/libsystemd/libsystemd.sym
+++ b/src/libsystemd/libsystemd.sym
@@ -540,4 +540,5 @@ global:
         sd_bus_add_match_async;
         sd_bus_match_signal;
         sd_bus_match_signal_async;
+        sd_bus_is_ready;
 } LIBSYSTEMD_236;
diff --git a/src/libsystemd/sd-bus/sd-bus.c b/src/libsystemd/sd-bus/sd-bus.c
index 0266fbaf55..7967aac7c6 100644
--- a/src/libsystemd/sd-bus/sd-bus.c
+++ b/src/libsystemd/sd-bus/sd-bus.c
@@ -1396,6 +1396,13 @@ _public_ int sd_bus_is_open(sd_bus *bus) {
         return BUS_IS_OPEN(bus->state);
 }
 
+_public_ int sd_bus_is_ready(sd_bus *bus) {
+        assert_return(bus, -EINVAL);
+        assert_return(!bus_pid_changed(bus), -ECHILD);
+
+        return bus->state == BUS_RUNNING;
+}
+
 _public_ int sd_bus_can_send(sd_bus *bus, char type) {
         int r;
 
diff --git a/src/systemd/sd-bus.h b/src/systemd/sd-bus.h
index 9a6581348c..76bd5eff95 100644
--- a/src/systemd/sd-bus.h
+++ b/src/systemd/sd-bus.h
@@ -165,6 +165,7 @@ sd_bus *sd_bus_flush_close_unref(sd_bus *bus);
 void sd_bus_default_flush_close(void);
 
 int sd_bus_is_open(sd_bus *bus);
+int sd_bus_is_ready(sd_bus *bus);
 
 int sd_bus_get_bus_id(sd_bus *bus, sd_id128_t *id);
 int sd_bus_get_scope(sd_bus *bus, const char **scope);