diff --git a/tools/v8_gypfiles/GN-scraper.py b/tools/v8_gypfiles/GN-scraper.py
index 59818ad73738fe..ec72f1d47ea4a0 100644
--- a/tools/v8_gypfiles/GN-scraper.py
+++ b/tools/v8_gypfiles/GN-scraper.py
@@ -7,8 +7,8 @@
 def DoMain(args):
   gn_filename, pattern = args
   src_root = os.path.dirname(gn_filename)
-  with open(gn_filename, 'r') as gn_file:
-    gn_content = gn_file.read().encode('utf-8')
+  with open(gn_filename, 'rb') as gn_file:
+    gn_content = gn_file.read().decode('utf-8')
 
   scraper_re = re.compile(pattern + r'\[([^\]]+)', re.DOTALL)
   matches = scraper_re.search(gn_content)