diff --git a/superset/connectors/sqla/views.py b/superset/connectors/sqla/views.py
index f4abf12f980c7..3bc31f0a006b3 100644
--- a/superset/connectors/sqla/views.py
+++ b/superset/connectors/sqla/views.py
@@ -279,6 +279,8 @@ def edit(self, pk):
         __('Refresh column metadata'),
         'fa-refresh')
     def refresh(self, tables):
+        if not isinstance(tables, list):
+            tables = [tables]
         for t in tables:
             t.fetch_metadata()
         msg = _(