diff --git a/cdc/model/schema_storage.go b/cdc/model/schema_storage.go
index b7ad2d5db42..5aade7cc880 100644
--- a/cdc/model/schema_storage.go
+++ b/cdc/model/schema_storage.go
@@ -151,7 +151,7 @@ func WrapTableInfo(schemaID int64, schemaName string, version uint64, info *mode
 		ti.rowColInfos[i] = rowcodec.ColInfo{
 			ID:            col.ID,
 			IsPKHandle:    pkIsHandle,
-			Ft:            col.FieldType.Clone(),
+			Ft:            &col.FieldType,
 			VirtualGenCol: col.IsGenerated(),
 		}
 		ti.rowColFieldTps[col.ID] = ti.rowColInfos[i].Ft