diff --git a/test/unit/test_build_unit.py b/test/unit/test_build_unit.py
index 5ba99fab..d5473419 100644
--- a/test/unit/test_build_unit.py
+++ b/test/unit/test_build_unit.py
@@ -41,7 +41,7 @@ def revisions(self, path, max_revisions):
                 added_files=["e"],
                 modified_files=["f"],
                 deleted_files=["a"],
-            )
+            ),
         ]
 
     def checkout(self, revision, options):