diff --git a/cc/gen_stub_libs.py b/cc/gen_stub_libs.py
index 8c99bbf..32765a7 100755
--- a/cc/gen_stub_libs.py
+++ b/cc/gen_stub_libs.py
@@ -274,7 +274,8 @@
             elif global_scope and not cpp_symbols:
                 symbols.append(self.parse_symbol())
             else:
-                # We're in a hidden scope or in 'extern "C++"' block. Ignore everything.
+                # We're in a hidden scope or in 'extern "C++"' block. Ignore
+                # everything.
                 pass
         raise ParseError('Unexpected EOF in version block.')