diff --git a/playground/nutech/receipt/drs-schema.json b/playground/nutech/receipt/drs-schema.json
index 67379fa7..691b1bed 100644
--- a/playground/nutech/receipt/drs-schema.json
+++ b/playground/nutech/receipt/drs-schema.json
@@ -104,7 +104,7 @@
     "time": {
       "type": "string",
       "title": "Time",
-      "format"
+      "format":
 }
 }
 }
\ No newline at end of file