diff --git a/third_party/ffmpeg/chromium/scripts/generate_gyp.py b/chromium/scripts/generate_gyp.py
index c3fd3c0..94c2aad 100755
--- a/third_party/ffmpeg/chromium/scripts/generate_gyp.py
+++ b/third_party/ffmpeg/chromium/scripts/generate_gyp.py
@@ -790,6 +790,9 @@
 # Prefix added to renamed files as part of
 RENAME_PREFIX = 'autorename'
 
+# Match an absolute path to a generated auotorename_ file.
+RENAME_REGEX = re.compile('.*' + RENAME_PREFIX + '_.+');
+
 # Content for the rename file. #includes the original file to ensure the two
 # files stay in sync.
 RENAME_CONTENT = """// File automatically generated. See crbug.com/495833.
@@ -1020,6 +1023,12 @@
     for source in source_set.sources:
       GetIncludedSources(source, source_dir, sources_to_check)
 
+  # Remove autorename_ files now that we've grabbed their underlying includes.
+  # We generated autorename_ files above and should not consider them for
+  # licensing or credits.
+  sources_to_check = filter(lambda s: not RENAME_REGEX.search(s),
+                            sources_to_check)
+
   if not CheckLicensesForStaticLinking(sources_to_check, source_dir,
                                        options.print_licenses):
     exit('GENERATE FAILED: invalid licenses detected.')