diff --git a/src/GenericFilter.py b/src/GenericFilter.py
index 4c4de2d63..dd9b11bcd 100644
--- a/src/GenericFilter.py
+++ b/src/GenericFilter.py
@@ -311,7 +311,7 @@ class IsDefaultPerson(Rule):
         person = db.get_default_person()
         if person:
             return p_id == person.get_handle()
-        return false
+        return 0
 
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