diff --git a/app/config.json.sample b/app/config.json.sample
index f2d1902..daa9504 100644
--- a/app/config.json.sample
+++ b/app/config.json.sample
@@ -9,7 +9,7 @@
     "origins": ["localhost:2222"]
   },
   "ipfilter": {
-    allowed_ips: ['127.21.0.1']
+    "allowed_ips": ['127.21.0.1']
   },
   "user": {
     "name": "aer",