diff --git a/gnu/services/dbus.scm b/gnu/services/dbus.scm
index 52cb1e3a51..5efd6bdadf 100644
--- a/gnu/services/dbus.scm
+++ b/gnu/services/dbus.scm
@@ -40,6 +40,8 @@ (define-module (gnu services dbus)
             dbus-service
             wrapped-dbus-service
 
+            polkit-configuration
+            polkit-configuration?
             polkit-service-type
             polkit-service))