diff --git a/gaehsnitz/management/commands/drink_stats.py b/gaehsnitz/management/commands/drink_stats.py
index 6bc5a55..b424054 100644
--- a/gaehsnitz/management/commands/drink_stats.py
+++ b/gaehsnitz/management/commands/drink_stats.py
@@ -25,7 +25,7 @@ class Command(BaseCommand):
             print("Flaschen (laut Strichliste):")
             bought = drink.bottles_total
             print(f"  gekauft:   {bought}")
-            consumed = drink.consumption_list.aggregate(sum=Sum("amount"))["sum"]
+            consumed = drink.consumption_list.aggregate(sum=Sum("amount"))["sum"] or 0
             print(f"  getrunken: {consumed}")
             remaining = bought - consumed
             print(f"  übrig:     {remaining}")