diff --git a/superset/models/dashboard.py b/superset/models/dashboard.py
index 6203cb400b..5252574530 100644
--- a/superset/models/dashboard.py
+++ b/superset/models/dashboard.py
@@ -171,6 +171,7 @@ class Dashboard(  # pylint: disable=too-many-instance-attributes
 
     @property
     def datasources(self) -> Set[BaseDatasource]:
+        # pylint: disable=using-constant-test
         return {slc.datasource for slc in self.slices if slc.datasource}
 
     @property