diff --git a/views.py b/views.py
index f11d1a7..24392d0 100644
--- a/views.py
+++ b/views.py
@@ -457,7 +457,7 @@ class UpperLimitView(APIView):
         map_pixels_qs = (
             Pixel.objects.filter(hpid__in=map_pixel_list, survey__in=survey_numbers)
             .values("hpid")
-            .annotate(counts=Sum("counts"))
+            .annotate(counts=Sum("counts"), exposure=Sum("exposure"))
             .order_by("hpid")
         )