diff --git a/script/cpplint.py b/script/cpplint.py
index ca4cdf70f5..674426bb66 100755
--- a/script/cpplint.py
+++ b/script/cpplint.py
@@ -89,7 +89,7 @@ def find_files(roots, test):
 
 
 def is_cpp_file(filename):
-      return filename.endswith('.cc') or filename.endswith('.h')
+  return filename.endswith('.cc') or filename.endswith('.h')
 
 
 def find_changed_files():