diff --git a/shiftregister/metrics/views.py b/shiftregister/metrics/views.py
index 3e2cbeb..1c77f50 100644
--- a/shiftregister/metrics/views.py
+++ b/shiftregister/metrics/views.py
@@ -105,7 +105,8 @@ def metrics(request):
                                 default=F("required_helpers"),
                             )
                         )
-                        .aggregate(sum=Sum("real_required_helpers"))["sum"],
+                        .aggregate(sum=Sum("real_required_helpers"))["sum"]
+                        or 0,
                     ),
                     (
                         "messages_sent_total",