diff --git a/chromium_src/BUILD.gn b/chromium_src/BUILD.gn
index f5a893990224..ffd4dacca88e 100644
--- a/chromium_src/BUILD.gn
+++ b/chromium_src/BUILD.gn
@@ -92,6 +92,7 @@ static_library("chrome") {
       "//chrome/browser/media/webrtc/system_media_capture_permissions_stats_mac.h",
       "//chrome/browser/media/webrtc/system_media_capture_permissions_stats_mac.mm",
       "//chrome/browser/media/webrtc/window_icon_util_mac.mm",
+      "//chrome/browser/platform_util_mac.mm",
       "//chrome/browser/process_singleton_mac.mm",
       "//chrome/browser/ui/views/eye_dropper/eye_dropper_view_mac.h",
       "//chrome/browser/ui/views/eye_dropper/eye_dropper_view_mac.mm",