diff --git a/lib/annotate/annotate_models.rb b/lib/annotate/annotate_models.rb
index 1d64c383d..35bc23855 100644
--- a/lib/annotate/annotate_models.rb
+++ b/lib/annotate/annotate_models.rb
@@ -154,7 +154,7 @@ def factory_files(root_directory)
     def serialize_files(root_directory)
       [
         File.join(root_directory, SERIALIZERS_DIR,       "%MODEL_NAME%_serializer.rb"),
-        File.join(root_directory, SERIALIZERS_TEST_DIR,  "%MODEL_NAME%_serializer_spec.rb"),
+        File.join(root_directory, SERIALIZERS_TEST_DIR,  "%MODEL_NAME%_serializer_test.rb"),
         File.join(root_directory, SERIALIZERS_SPEC_DIR,  "%MODEL_NAME%_serializer_spec.rb")
       ]
     end