diff --git a/tests/models.py b/tests/models.py
index afe649760..d6926eaf3 100644
--- a/tests/models.py
+++ b/tests/models.py
@@ -85,7 +85,7 @@ class NullableForeignKeySource(RESTFrameworkModel):
 class NullableUUIDForeignKeySource(RESTFrameworkModel):
     name = models.CharField(max_length=100)
     target = models.ForeignKey(ForeignKeyTarget, null=True, blank=True,
-                               related_name='nullable_sources',
+                               related_name='nullable_uuid_sources',
                                verbose_name='Optional target object',
                                on_delete=models.CASCADE)