diff --git a/src/git/install.py b/src/git/install.py
index 3516595b..6a24ee6c 100644
--- a/src/git/install.py
+++ b/src/git/install.py
@@ -16,7 +16,7 @@ def do_vcs_install(versionfile_source, ipy):
     if "VERSIONEER_PEP518" not in globals():
         try:
             my_path = __file__
-            if my_path.endswith(".pyc") or my_path.endswith(".pyo"):
+            if my_path.endswith((".pyc", ".pyo")):
                 my_path = os.path.splitext(my_path)[0] + ".py"
             versioneer_file = os.path.relpath(my_path)
         except NameError: