diff --git a/frontend/src/Editor/DataSourceManager/DataSourceManager.jsx b/frontend/src/Editor/DataSourceManager/DataSourceManager.jsx
index 65fca59273..9ab235c625 100644
--- a/frontend/src/Editor/DataSourceManager/DataSourceManager.jsx
+++ b/frontend/src/Editor/DataSourceManager/DataSourceManager.jsx
@@ -73,6 +73,7 @@ class DataSourceManager extends React.Component {
       dataSourceMeta: {},
       selectedDataSource: null,
       options: {},
+      connectionTestError: null,
     });
   };