diff --git a/superset/viz.py b/superset/viz.py
index e36df190c1d76..ef848e5cbfe02 100644
--- a/superset/viz.py
+++ b/superset/viz.py
@@ -1376,6 +1376,7 @@ def query_obj(self):
         return d
 
     def get_data(self, df):
+        self.form_data['metrics'] = [self.form_data.get('metric')]
         fd = self.form_data
         df = self.process_data(df)
         freq = to_offset(fd.get('freq'))