diff --git a/tools/gn b/tools/gn
index 8d345d8527103a2a9ce325a80d283e4509fe9c7f..6f4c045d08fc523a78958877d73d935705b5f94b 100755
--- a/tools/gn
+++ b/tools/gn
@@ -89,7 +89,7 @@ def to_gn_args(args):
     if args.bitcode:
       if args.target_os != 'ios':
         raise Exception('Bitcode is only supported for iOS')
-      if runtime_mode == 'debug':
+      if runtime_mode != 'release':
         gn_args['bitcode_marker'] = True
 
     gn_args['enable_bitcode'] = args.bitcode