diff --git a/pre_commit/main.py b/pre_commit/main.py
index 280f5a5b..e1101209 100644
--- a/pre_commit/main.py
+++ b/pre_commit/main.py
@@ -46,7 +46,6 @@ def main(argv=None):
     argv = [five.to_text(arg) for arg in argv]
     parser = argparse.ArgumentParser()
 
-    parser.set_defaults(config='.pre-commit-config.yaml')
     # http://stackoverflow.com/a/8521644/812183
     parser.add_argument(
         '-V', '--version',