diff --git a/ultron/followup/views.py b/ultron/followup/views.py
index 8b0d9f431a..b31057cd52 100644
--- a/ultron/followup/views.py
+++ b/ultron/followup/views.py
@@ -85,6 +85,7 @@ def average_jump_chrono_details_for_week_of_season(request, gymnast_id, routine_
         week_number     int     date de fin
     """
     today = pendulum.now().date()
+    week_number = int(week_number)
 
     if week_number > 52:
         week_number = 52