diff --git a/openwrt/files/ua3f.init b/openwrt/files/ua3f.init
index fea4f17..a7825fb 100755
--- a/openwrt/files/ua3f.init
+++ b/openwrt/files/ua3f.init
@@ -53,6 +53,7 @@ start_service() {
     procd_set_param stdout 1
     procd_set_param stderr 1
     procd_set_param limits nproc="unlimited" as="unlimited" memlock="unlimited" nofile="65535 65535"
+    procd_set_param pidfile "/var/run/$NAME.pid"
 
     procd_close_instance
 }