diff --git a/kfet/views.py b/kfet/views.py
index 8bca6462..5fbcea3e 100644
--- a/kfet/views.py
+++ b/kfet/views.py
@@ -1102,7 +1102,9 @@ def kpsul_cancel_operations(request):
     # Checking if BAD REQUEST (opes_pk not int or not existing)
     try:
         # Set pour virer les doublons
-        opes_post = set(map(int, filter(None, request.POST.getlist('operations[]', []))))
+        opes_post = set(map(lambda s: int(s.split()[1]),
+                            filter(lambda s: s.split()[0] == 'ope',
+                                   request.POST.getlist('operations[]', []))))
     except ValueError:
         return JsonResponse(data, status=400)
     opes_all = (