diff --git a/src/boringssl/gen_build_yaml.py b/src/boringssl/gen_build_yaml.py
index 7635f3b7970..eb4a59ae8b7 100755
--- a/src/boringssl/gen_build_yaml.py
+++ b/src/boringssl/gen_build_yaml.py
@@ -30,7 +30,7 @@ def map_dir(filename):
 
 
 class Grpc(object):
-    """ Adapter for boring-SSL json sources files. """
+    """Adapter for boring-SSL json sources files. """
 
     def __init__(self, sources):
         self.yaml = None