diff --git a/kfet/static/kfet/js/history.js b/kfet/static/kfet/js/history.js
index 7a842822..e23d4c6a 100644
--- a/kfet/static/kfet/js/history.js
+++ b/kfet/static/kfet/js/history.js
@@ -59,11 +59,16 @@ class History {
         $(document).on('keydown', function(e) {
             if (e.keyCode == 46) {
                 //DEL key ; we delete the selected operations (if any)
-                var to_cancel = [];
+                var to_cancel = {'transfers': [], 'opes': [],};
                 that._$container.find('.ope.ui-selected').each(function() {
-                    to_cancel.push($(this).parent().attr('id')) ;
+                    var [type, id] = $(this).parent().attr('id').split('-');
+
+                    if (type === 'transfer')
+                        to_cancel['transfers'].push(id);
+                    else
+                        to_cancel['opes'].push(id);
                 });
-                if (to_cancel.length > 0)
+                if (to_cancel['opes'].length > 0 || to_cancel['transfers'].length > 0)
                     that.cancel_operations(to_cancel);
             }
         });
@@ -86,13 +91,11 @@ class History {
             var focus_next = undefined;
         }
 
-        var data = { 'operations': to_cancel };
-
         $.ajax({
             dataType: "json",
             url     : Urls['kfet.kpsul.cancel_operations'](),
             method  : "POST",
-            data    : data,
+            data    : to_cancel,
             beforeSend: function ($xhr) {
                 $xhr.setRequestHeader("X-CSRFToken", csrftoken);
                 if (password != '')
diff --git a/kfet/views.py b/kfet/views.py
index 73edc4bd..c901bff7 100644
--- a/kfet/views.py
+++ b/kfet/views.py
@@ -1134,14 +1134,10 @@ 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(lambda s: int(s.split('-')[1]),
-                            filter(lambda s: s.split('-')[0] == 'purchase'
-                                   or s.split('-')[0] == 'specialope',
-                                   request.POST.getlist('operations[]', []))))
-        transfers_post = \
-            set(map(lambda s: int(s.split('-')[1]),
-                    filter(lambda s: s.split('-')[0] == 'transfer',
-                           request.POST.getlist('operations[]', []))))
+        opes_post = set(map(lambda s: int(s),
+                            request.POST.getlist('opes[]', [])))
+        transfers_post = set(map(lambda s: int(s),
+                                 request.POST.getlist('transfers[]', [])))
     except ValueError:
         return JsonResponse(data, status=400)