diff --git a/shiftregister/app/views.py b/shiftregister/app/views.py
index fd66db7..83be945 100644
--- a/shiftregister/app/views.py
+++ b/shiftregister/app/views.py
@@ -25,7 +25,7 @@ def index(request):
     }
 
     if request.helper:
-        context["my_future_shifts"] = (
+        context["my_future_shifts"] = list(
             reg.shift
             for reg in request.helper.shiftregistration_set.filter(
                 shift__start_at__gt=timezone.now(),
@@ -58,9 +58,14 @@ def index(request):
         for day in Shift.objects.datetimes("start_at", "day")
     )
     if request.helper:
-        free_shifts = (day.filter(~Q(shiftregistration__helper=request.helper)) for day in free_shifts)
+        free_shifts = (
+            day.filter(~Q(shiftregistration__helper=request.helper))
+            for day in free_shifts
+        )
 
-    context["free_shifts"] = list(map(lambda qs: list(qs), filter(lambda qs: qs.exists(), free_shifts)))
+    context["free_shifts"] = list(
+        map(lambda qs: list(qs), filter(lambda qs: qs.exists(), free_shifts))
+    )
     return render(request, "shiftlist.html", context)