diff --git a/tests/generic_relations_regress/models.py b/tests/generic_relations_regress/models.py
index c598d9bfc8..47f6aeb92b 100644
--- a/tests/generic_relations_regress/models.py
+++ b/tests/generic_relations_regress/models.py
@@ -123,7 +123,7 @@ class Tag(models.Model):
 
 
 class Board(models.Model):
-    name = models.CharField(primary_key=True, max_length=15)
+    name = models.CharField(primary_key=True, max_length=25)
 
 
 class SpecialGenericRelation(GenericRelation):