diff --git a/src/core/dbus-path.c b/src/core/dbus-path.c
index e59093e4154..fec67d595f0 100644
--- a/src/core/dbus-path.c
+++ b/src/core/dbus-path.c
@@ -47,29 +47,9 @@ static int property_get_paths(
         return sd_bus_message_close_container(reply);
 }
 
-static int property_get_unit(
-                sd_bus *bus,
-                const char *path,
-                const char *interface,
-                const char *property,
-                sd_bus_message *reply,
-                void *userdata,
-                sd_bus_error *error) {
-
-        Unit *p = userdata, *trigger;
-
-        assert(bus);
-        assert(reply);
-        assert(p);
-
-        trigger = UNIT_TRIGGER(p);
-
-        return sd_bus_message_append(reply, "s", trigger ? trigger->id : "");
-}
-
 const sd_bus_vtable bus_path_vtable[] = {
         SD_BUS_VTABLE_START(0),
-        SD_BUS_PROPERTY("Unit", "s", property_get_unit, 0, SD_BUS_VTABLE_PROPERTY_CONST),
+        SD_BUS_PROPERTY("Unit", "s", bus_property_get_triggered_unit, 0, SD_BUS_VTABLE_PROPERTY_CONST),
         SD_BUS_PROPERTY("Paths", "a(ss)", property_get_paths, 0, SD_BUS_VTABLE_PROPERTY_CONST),
         SD_BUS_PROPERTY("MakeDirectory", "b", bus_property_get_bool, offsetof(Path, make_directory), SD_BUS_VTABLE_PROPERTY_CONST),
         SD_BUS_PROPERTY("DirectoryMode", "u", bus_property_get_mode, offsetof(Path, directory_mode), SD_BUS_VTABLE_PROPERTY_CONST),
diff --git a/src/core/dbus-timer.c b/src/core/dbus-timer.c
index de34febb63b..eef060ff0f6 100644
--- a/src/core/dbus-timer.c
+++ b/src/core/dbus-timer.c
@@ -103,26 +103,6 @@ static int property_get_calendar_timers(
         return sd_bus_message_close_container(reply);
 }
 
-static int property_get_unit(
-                sd_bus *bus,
-                const char *path,
-                const char *interface,
-                const char *property,
-                sd_bus_message *reply,
-                void *userdata,
-                sd_bus_error *error) {
-
-        Unit *u = userdata, *trigger;
-
-        assert(bus);
-        assert(reply);
-        assert(u);
-
-        trigger = UNIT_TRIGGER(u);
-
-        return sd_bus_message_append(reply, "s", trigger ? trigger->id : "");
-}
-
 static int property_get_next_elapse_monotonic(
                 sd_bus *bus,
                 const char *path,
@@ -145,7 +125,7 @@ static int property_get_next_elapse_monotonic(
 
 const sd_bus_vtable bus_timer_vtable[] = {
         SD_BUS_VTABLE_START(0),
-        SD_BUS_PROPERTY("Unit", "s", property_get_unit, 0, SD_BUS_VTABLE_PROPERTY_CONST),
+        SD_BUS_PROPERTY("Unit", "s", bus_property_get_triggered_unit, 0, SD_BUS_VTABLE_PROPERTY_CONST),
         SD_BUS_PROPERTY("TimersMonotonic", "a(stt)", property_get_monotonic_timers, 0, SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
         SD_BUS_PROPERTY("TimersCalendar", "a(sst)", property_get_calendar_timers, 0, SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
         SD_BUS_PROPERTY("NextElapseUSecRealtime", "t", bus_property_get_usec, offsetof(Timer, next_elapse_realtime), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
diff --git a/src/core/dbus-util.c b/src/core/dbus-util.c
index 2aa682f1031..15a3169bef6 100644
--- a/src/core/dbus-util.c
+++ b/src/core/dbus-util.c
@@ -13,6 +13,26 @@
 #include "user-util.h"
 #include "unit.h"
 
+int bus_property_get_triggered_unit(
+                sd_bus *bus,
+                const char *path,
+                const char *interface,
+                const char *property,
+                sd_bus_message *reply,
+                void *userdata,
+                sd_bus_error *error) {
+
+        Unit *u = userdata, *trigger;
+
+        assert(bus);
+        assert(reply);
+        assert(u);
+
+        trigger = UNIT_TRIGGER(u);
+
+        return sd_bus_message_append(reply, "s", trigger ? trigger->id : NULL);
+}
+
 BUS_DEFINE_SET_TRANSIENT(mode_t, "u", uint32_t, mode_t, "%040o");
 BUS_DEFINE_SET_TRANSIENT(unsigned, "u", uint32_t, unsigned, "%" PRIu32);
 BUS_DEFINE_SET_TRANSIENT_STRING_WITH_CHECK(user, valid_user_group_name_or_id);
diff --git a/src/core/dbus-util.h b/src/core/dbus-util.h
index 18c40f9148c..b1f7b69d796 100644
--- a/src/core/dbus-util.h
+++ b/src/core/dbus-util.h
@@ -10,6 +10,8 @@
 #include "sd-bus.h"
 #include "unit.h"
 
+int bus_property_get_triggered_unit(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error);
+
 #define BUS_DEFINE_SET_TRANSIENT(function, bus_type, type, cast_type, fmt) \
         int bus_set_transient_##function(                               \
                         Unit *u,                                        \