diff --git a/git_cl.py b/git_cl.py
index 49a9f12aa..fe92b2cc3 100755
--- a/git_cl.py
+++ b/git_cl.py
@@ -4931,13 +4931,7 @@ def CMDformat(parser, args):
       if not yapf_style:
         yapf_style = 'pep8'
 
-      with open(f, 'r') as py_f:
-        if 'python3' in py_f.readline():
-          vpython_script = 'vpython3'
-        else:
-          vpython_script = 'vpython'
-
-      cmd = [vpython_script, yapf_tool, '--style', yapf_style, f]
+      cmd = [yapf_tool, '--style', yapf_style, f]
 
       has_formattable_lines = False
       if not opts.full: