diff --git a/net/mwan3/files/etc/init.d/mwan3 b/net/mwan3/files/etc/init.d/mwan3
index 22d5c2bd3..33a1f46e5 100755
--- a/net/mwan3/files/etc/init.d/mwan3
+++ b/net/mwan3/files/etc/init.d/mwan3
@@ -91,6 +91,8 @@ stop_service() {
 		} | $IPTR
 	done
 
+	# Needed for the firewall backend to release the ipsets reference
+	sleep 2
 	for ipset in $($IPS -n list | grep mwan3_); do
 		$IPS -q destroy $ipset
 	done