diff --git a/src/paccache.service.in b/src/paccache.service.in
index 0a280b3..a821daf 100644
--- a/src/paccache.service.in
+++ b/src/paccache.service.in
@@ -36,5 +36,5 @@ RestrictRealtime=yes
 RestrictSUIDSGID=yes
 RemoveIPC=yes
 PrivateMounts=yes
-SystemCallFilter=@file-system
+SystemCallFilter=@system-service @file-system
 SystemCallArchitectures=native