diff --git a/tools/osx_packaging/osx_build b/tools/osx_packaging/osx_build
index e55b597b79..a0fe50d142 100755
--- a/tools/osx_packaging/osx_build
+++ b/tools/osx_packaging/osx_build
@@ -439,7 +439,7 @@ fi
 cp $BUILD_ROOT/gtk2_ardour/default_ui_config $Resources
 cp $BUILD_ROOT/gtk2_ardour/default_ui_config $Resources/ui_config
 cp $BUILD_ROOT/gtk2_ardour/ui_light.rc $Resources
-cp $BUILD_ROOT/gtk2_ardour/ui_light.rc $Resources
+cp $BUILD_ROOT/gtk2_ardour/ui_dark.rc $Resources
 cp $BUILD_ROOT/gtk2_ardour/light_fonts.rc $Resources
 cp $BUILD_ROOT/gtk2_ardour/light_styles.rc $Resources
 cp $BUILD_ROOT/gtk2_ardour/dark_fonts.rc $Resources