diff --git a/Labs/TableCatalog.json b/Labs/TableCatalog.json
index 53ef5ce..4a18ae8 100644
--- a/Labs/TableCatalog.json
+++ b/Labs/TableCatalog.json
@@ -535,7 +535,7 @@
             "ordinal": 6
           },
           "sink": {
-            "name": "rowguid",
+            "name": "DateTime",
             "physicalType": "UTF8"
           }
         },