diff --git a/gio/gdbusconnection.c b/gio/gdbusconnection.c
index 6bd1d1d0b..8bf0dc3b4 100644
--- a/gio/gdbusconnection.c
+++ b/gio/gdbusconnection.c
@@ -6769,25 +6769,6 @@ get_uninitialized_connection (GBusType       bus_type,
   return ret;
 }
 
-/* Called in any user thread, without holding locks. */
-GDBusConnection *
-_g_bus_get_singleton_if_exists (GBusType bus_type)
-{
-  GWeakRef *singleton;
-  GDBusConnection *ret = NULL;
-
-  G_LOCK (message_bus_lock);
-  singleton = message_bus_get_singleton (bus_type, NULL);
-  if (singleton == NULL)
-    goto out;
-
-  ret = g_weak_ref_get (singleton);
-
- out:
-  G_UNLOCK (message_bus_lock);
-  return ret;
-}
-
 /**
  * g_bus_get_sync:
  * @bus_type: A #GBusType.
diff --git a/gio/gdbusprivate.h b/gio/gdbusprivate.h
index 1ac7754a3..7230a8d46 100644
--- a/gio/gdbusprivate.h
+++ b/gio/gdbusprivate.h
@@ -143,9 +143,6 @@ void _g_dbus_object_proxy_add_interface (GDBusObjectProxy *proxy,
 void _g_dbus_object_proxy_remove_interface (GDBusObjectProxy *proxy,
                                             const gchar      *interface_name);
 
-/* Implemented in gdbusconnection.c */
-GDBusConnection *_g_bus_get_singleton_if_exists (GBusType bus_type);
-
 G_END_DECLS
 
 #endif /* __G_DBUS_PRIVATE_H__ */