diff --git a/system.scm b/system.scm
index 408cbe3..48246b7 100644
--- a/system.scm
+++ b/system.scm
@@ -42,7 +42,7 @@
             %base-file-systems))))
 
 (define pam-audio
-  (pam-limits-service-type
+  (service pam-limits-service-type
     (list
       (pam-limits-entry "@audio" 'both 'rtprio 99)
       (pam-limits-entry "@audio" 'both 'memlock 'unlimited))))