diff --git a/busManager/coord/models.py b/busManager/coord/models.py
index f42e339..370b7e8 100644
--- a/busManager/coord/models.py
+++ b/busManager/coord/models.py
@@ -326,7 +326,7 @@ class Family(models.Model):
             return a_name
         elif b_name:
             return b_name
-        return None
+        return ""
 
     def get_parsed_numbers(self, parents=False, emergency=False):
         numbers = []