diff --git a/scripts/src/pikaoa-public-edge.ts b/scripts/src/pikaoa-public-edge.ts
index 3a2e9674..550395f8 100644
--- a/scripts/src/pikaoa-public-edge.ts
+++ b/scripts/src/pikaoa-public-edge.ts
@@ -236,10 +236,12 @@ if changed:
 print(json.dumps({"ok": True, "service": service, "fromPort": old, "toPort": new, "changed": changed}))
 PY
 port_rc=$?
-if [ "$port_rc" -eq 0 ]; then
+if [ "$port_rc" -eq 0 ] && grep -q '"changed": true' "$tmp/port.json"; then
   cd ${shQuote(spec.tcpPortRelease.workDir)}
   ${spec.tcpPortRelease.applyCommand} >"$tmp/vpn.out" 2>"$tmp/vpn.err"
   vpn_rc=$?
+elif [ "$port_rc" -eq 0 ]; then
+  : >"$tmp/vpn.out"; : >"$tmp/vpn.err"; vpn_rc=0
 else
   : >"$tmp/vpn.out"; : >"$tmp/vpn.err"; vpn_rc=1
 fi