diff --git a/AKModel/views/ak.py b/AKModel/views/ak.py
index 44fbc0963b6264f863e28948c4513b489cec2f90..f1827b2923e8023013cc876b79344b2f2290a6ee 100644
--- a/AKModel/views/ak.py
+++ b/AKModel/views/ak.py
@@ -9,7 +9,7 @@ from django.views.generic import ListView, DetailView
 from AKModel.availability.models import Availability
 from AKModel.metaviews.admin import AdminViewMixin, FilterByEventSlugMixin, EventSlugMixin, IntermediateAdminView, \
     IntermediateAdminActionView
-from AKModel.models import AKRequirement, AKSlot, Event, AKOrgaMessage, AK, Room, AKOwner, merge_blocks
+from AKModel.models import AKRequirement, AKSlot, DefaultSlot, Event, AKOrgaMessage, AK, Room, AKOwner, merge_blocks
 
 
 class AKRequirementOverview(AdminViewMixin, FilterByEventSlugMixin, ListView):
@@ -114,7 +114,13 @@ class AKJSONExportView(AdminViewMixin, FilterByEventSlugMixin, ListView):
             if (values := AKSlot.objects.select_related().filter(ak__pk=ak_id, fixed=True)).exists()
         }
 
-        for block in merge_blocks(self.event.default_time_slots(slots_in_an_hour=SLOTS_IN_AN_HOUR)):
+        if DefaultSlot.objects.filter(event=self.event).exists():
+            # discretize default slots if they exists
+            blocks = merge_blocks(self.event.default_time_slots(slots_in_an_hour=SLOTS_IN_AN_HOUR))
+        else:
+            blocks = self.event.uniform_time_slots(slots_in_an_hour=SLOTS_IN_AN_HOUR)
+
+        for block in blocks:
             current_block = []
 
             for timeslot in block: