--- a/third_party/angle/src/angle.gypi
+++ b/third_party/angle/src/angle.gypi
@@ -52,7 +52,7 @@
                             'action_name': 'Generate ANGLE Commit ID Header',
                             'message': 'Generating ANGLE Commit ID',
                             # reference the git index as an input, so we rebuild on changes to the index
-                            'inputs': [ '<(angle_id_script)', '<(angle_path)/.git/index' ],
+                            'inputs': [ '<(angle_id_script)' ],
                             'outputs': [ '<(angle_id_header)' ],
                             'msvs_cygwin_shell': 0,
                             'action':