diff --git a/engine/src/flutter/tools/gn b/engine/src/flutter/tools/gn
index 70d2ff4a690..37cc2480076 100755
--- a/engine/src/flutter/tools/gn
+++ b/engine/src/flutter/tools/gn
@@ -1195,14 +1195,6 @@ def parse_args(args):
       help='Whether the -fstack-protector flag should be passed unconditionally.'
   )
 
-  parser.add_argument(
-      '--trace-gn',
-      default=True,
-      action='store_true',
-      help='Write a GN trace log (gn_trace.json) in the Chromium tracing '
-      'format in the build directory.'
-  )
-
   parser.add_argument(
       '--darwin-extension-safe',
       default=False,
@@ -1287,9 +1279,7 @@ def main(argv):
   out_dir = get_out_dir(args)
   command.append(out_dir)
   command.append('--args=%s' % ' '.join(gn_args))
-
-  if args.trace_gn:
-    command.append('--tracelog=%s/gn_trace.json' % out_dir)
+  command.append('--tracelog=%s/gn_trace.json' % out_dir)
 
   if args.verbose:
     command.append('-v')