diff --git a/attract/shots/routes.py b/attract/shots/routes.py
index c0658ef..fc6a2cf 100644
--- a/attract/shots/routes.py
+++ b/attract/shots/routes.py
@@ -60,7 +60,7 @@ def for_project(project, attract_props, task_id=None, shot_id=None):
 
     # Some aggregated stats
     stats = {
-        'nr_of_shots': sum(shot.properties.used_in_edit for shot in shots),
+        'nr_of_shots': sum(shot.properties.used_in_edit or 0 for shot in shots),
         'total_frame_count': sum(shot.properties.duration_in_edit_in_frames or 0
                                  for shot in shots
                                  if shot.properties.used_in_edit),