diff --git a/app.json b/app.json
index a65c6dc3f..1d53926f5 100644
--- a/app.json
+++ b/app.json
@@ -126,15 +126,6 @@
       "required": true
     }
   },
-  "PING_IMG": {
-
-      "description": "For custom ping image, use telegra.ph link",
-
-      "value": "",
-
-      "required": false
-
-    },
   "buildpacks": [
         {
             "url": "heroku/python"