diff --git a/apparmor.d/groups/avahi/avahi-autoipd b/apparmor.d/groups/avahi/avahi-autoipd
index 464d89290..e1c676da9 100644
--- a/apparmor.d/groups/avahi/avahi-autoipd
+++ b/apparmor.d/groups/avahi/avahi-autoipd
@@ -17,7 +17,7 @@ profile avahi-autoipd @{exec_path} flags=(complain) {
   network inet6 stream,
   network netlink raw,
 
-  signal receive set={kill,term},
+  signal receive set=(kill,term),
 
   @{exec_path} rm,
   /etc/avahi/avahi-autoipd.action rix,