diff --git a/ui (gen4)/features/filesystem.js b/ui (gen4)/features/filesystem.js
index 23dda510..b2dc8c1f 100755
--- a/ui (gen4)/features/filesystem.js	
+++ b/ui (gen4)/features/filesystem.js	
@@ -2176,7 +2176,7 @@ var FileSystemWriterActions = actions.Actions({
 	// XXX check global index ('%I') in crop...
 	// XXX add option to "clean" destination...
 	// 		...i.e. if destination exists then move it to .removed/<date>/
-	//
+	// XXX make clean_target more error tolerant...
 	exportDirs: ['- File/Export/Export ribbons as directories',
 		core.doc`Export ribbons as directories