diff --git a/superset/viz.py b/superset/viz.py
index 165d4a1e6428..6db51a1f5070 100644
--- a/superset/viz.py
+++ b/superset/viz.py
@@ -1852,7 +1852,10 @@ def process_spatial_data_obj(self, key, df):
         elif spatial.get('type') == 'delimited':
             df[key] = (df[spatial.get('lonlatCol')].str.split(spatial.get('delimiter')))
             if spatial.get('reverseCheckbox'):
-                df[key] = [list(reversed(item))for item in df[key]]
+                df[key] = [
+                    tuple(reversed(o)) if isinstance(o, (list, tuple)) else (0, 0)
+                    for o in df[key]
+                ]
             del df[spatial.get('lonlatCol')]
         elif spatial.get('type') == 'geohash':
             latlong = df[spatial.get('geohashCol')].map(geohash.decode)