diff --git a/pre_commit/languages/python.py b/pre_commit/languages/python.py
index 3c8f8f01..d5698f35 100644
--- a/pre_commit/languages/python.py
+++ b/pre_commit/languages/python.py
@@ -27,7 +27,7 @@ def run_hook(hook, file_args):
     )
     ret = process.communicate()
 
-    return (0,) + ret
+    return (process.returncode,) + ret
 
     return local['bash'][
         '-c', ' '.join(