diff --git a/apiserver/apiserver/api/utils_stats.py b/apiserver/apiserver/api/utils_stats.py
index f951f80..fadd271 100644
--- a/apiserver/apiserver/api/utils_stats.py
+++ b/apiserver/apiserver/api/utils_stats.py
@@ -30,8 +30,13 @@ def calc_next_events():
 
     if member_meeting:
         cache.set('next_meeting', member_meeting.datetime)
+    else:
+        cache.set('next_meeting', None)
+
     if monthly_clean:
         cache.set('next_clean', monthly_clean.datetime)
+    else:
+        cache.set('next_clean', None)
 
 def calc_member_counts():
     members = models.Member.objects