diff --git a/playground/nutech/issue/STCl-schema.json b/playground/nutech/issue/STCl-schema.json
index e64f629a..3cb1d1b8 100644
--- a/playground/nutech/issue/STCl-schema.json
+++ b/playground/nutech/issue/STCl-schema.json
@@ -90,7 +90,7 @@
     },
     "timeout": {
       "type": "time",
-       "format": 
+       "format": ""
       "title": "Aerial No"
     },
     "remarks": {