diff --git a/AKModel/views/ak.py b/AKModel/views/ak.py
index b8b55ee8244b3e1d2251f74f1891064d03ca9b03..611cd619f9cad82c96ef212f6c047ac3fe46f359 100644
--- a/AKModel/views/ak.py
+++ b/AKModel/views/ak.py
@@ -86,9 +86,9 @@ class AKJSONExportView(AdminViewMixin, FilterByEventSlugMixin, ListView):
         }
 
         ak_fixed = {
-            ak: values.get()
-            for ak in ak_availabilities.keys()
-            if (values := AKSlot.objects.select_related().filter(ak__pk=ak, fixed=True)).exists()
+            ak_id: values.get()
+            for ak_id in ak_availabilities.keys()
+            if (values := AKSlot.objects.select_related().filter(ak__pk=ak_id, fixed=True)).exists()
         }
 
         def _test_slot_contained(slot: Availability, availabilities: List[Availability]) -> bool:
@@ -97,11 +97,11 @@ class AKJSONExportView(AdminViewMixin, FilterByEventSlugMixin, ListView):
         def _test_event_covered(slot: Availability, availabilities: List[Availability]) -> bool:
             return not Availability.is_event_covered(self.event, availabilities)
 
-        def _test_fixed_ak(ak, slot) -> bool:
-            if not ak in ak_fixed:
+        def _test_fixed_ak(ak_id, slot: Availability) -> bool:
+            if not ak_id in ak_fixed:
                 return False
 
-            fixed_slot = Availability(self.event, start=ak_fixed[ak].start, end=ak_fixed[ak].end)
+            fixed_slot = Availability(self.event, start=ak_fixed[ak_id].start, end=ak_fixed[ak_id].end)
             return fixed_slot.overlaps(slot, strict=True)
 
         def _test_add_constraint(slot: Availability, availabilities: List[Availability]) -> bool:
@@ -118,17 +118,17 @@ class AKJSONExportView(AdminViewMixin, FilterByEventSlugMixin, ListView):
                 if self.event.reso_deadline is None or slot.end < self.event.reso_deadline:
                     constraints.append("resolution")
 
-                for ak, availabilities in ak_availabilities.items():
-                    if _test_add_constraint(slot, availabilities) or _test_fixed_ak(ak, slot):
-                        constraints.append(f"availability-ak-{ak}")
+                for ak_id, availabilities in ak_availabilities.items():
+                    if _test_add_constraint(slot, availabilities) or _test_fixed_ak(ak_id, slot):
+                        constraints.append(f"availability-ak-{ak_id}")
 
-                for person, availabilities in person_availabilities.items():
+                for person_id, availabilities in person_availabilities.items():
                     if _test_add_constraint(slot, availabilities):
-                        constraints.append(f"availability-person-{person}")
+                        constraints.append(f"availability-person-{person_id}")
 
-                for person, availabilities in room_availabilities.items():
+                for room_id, availabilities in room_availabilities.items():
                     if _test_add_constraint(slot, availabilities):
-                        constraints.append(f"availability-room-{room}")
+                        constraints.append(f"availability-room-{room_id}")
 
                 current_block.append({
                     "id": str(slot_index),