diff --git a/playground/nutech/issue/STCl-schema.json b/playground/nutech/issue/STCl-schema.json
index 7179aef5..15f0b851 100644
--- a/playground/nutech/issue/STCl-schema.json
+++ b/playground/nutech/issue/STCl-schema.json
@@ -44,7 +44,7 @@
       "type": "string",
       "title": "Demand No"
     },
-    "gmt": {
+    "gmthmtno": {
       "type": "string",
       "title": "Demand Date",
       "format": "date"