diff --git a/lib/hub/commands.rb b/lib/hub/commands.rb
index 778661edab64575c57b37cb6da500c5f2cc2051c..bb1977dfb664627c82f61497669ad8a5ff74cc43 100644
--- a/lib/hub/commands.rb
+++ b/lib/hub/commands.rb
@@ -612,7 +612,7 @@ help
     # and `compare`. Yields a block that returns params for `github_url`.
     def browse_command(args)
       url_only = args.delete('-u')
-      $stderr.puts "Warning: the `-p` flag has no effect anymore" if args.delete('-p')
+      warn "Warning: the `-p` flag has no effect anymore" if args.delete('-p')
       params = yield
 
       args.executable = url_only ? 'echo' : browser_launcher