diff --git a/superset/viz.py b/superset/viz.py
index 848e3b35c9e48..2101b357bfbf0 100644
--- a/superset/viz.py
+++ b/superset/viz.py
@@ -115,7 +115,7 @@ def __init__(
         self.results: Optional[QueryResult] = None
         self.error_message: Optional[str] = None
         self.force = force
-        self.from_ddtm: Optional[datetime] = None
+        self.from_dttm: Optional[datetime] = None
         self.to_dttm: Optional[datetime] = None
 
         # Keeping track of whether some data came from cache