diff --git BUILD.gn BUILD.gn
index cd202499..6858350a 100644
--- BUILD.gn
+++ BUILD.gn
@@ -169,12 +169,6 @@ if (is_mac) {
             "$target_gen_dir/$target_name/{{source_name_part}}.$_output_extension",
             root_build_dir),
       ]
-      if (!use_system_xcode) {
-        args += [
-          "--developer_dir",
-          hermetic_xcode_path,
-        ]
-      }
       args += ibtool_flags
     }
   }