diff --git a/superset/views/core.py b/superset/views/core.py
index 291cf5fb06aa8..70d220f59d92e 100755
--- a/superset/views/core.py
+++ b/superset/views/core.py
@@ -1620,7 +1620,7 @@ def dashboard(self, dashboard_id):
         dash = qry.one()
         datasources = {slc.datasource for slc in dash.slices}
         for datasource in datasources:
-            if not self.datasource_access(datasource):
+            if datasource and not self.datasource_access(datasource):
                 flash(
                     __(get_datasource_access_error_msg(datasource.name)),
                     "danger")