diff --git a/config.scm b/config.scm
index 9bab3b6..b3b2777 100644
--- a/config.scm
+++ b/config.scm
@@ -89,8 +89,8 @@
     (service avahi-service-type)
     (service elogind-service-type)
     (service seatd-service-type)
-    (service polkit-service-type)
-    (service polkit-wheel-service)
+    (service polkit-service-type
+             polkit-wheel-service)
     (service upower-service-type)
     (service tlp-service-type)
     (service thermald-service-type