diff --git a/vendor/symposion/schedule/admin.py b/vendor/symposion/schedule/admin.py
index 34305cd2..0e1abcf9 100644
--- a/vendor/symposion/schedule/admin.py
+++ b/vendor/symposion/schedule/admin.py
@@ -63,7 +63,7 @@ class SessionAdmin(admin.ModelAdmin):
     model = Session,
     filter_vertical=["slots"]
     list_display=("day","start","end","room_names")
-    list__filter=("slot__slotroom__room","day")
+    list_filter=("slots__slotroom__room","day")
 
 admin.site.register(Day)
 admin.site.register(