diff --git a/Viewer/features/filesystem.js b/Viewer/features/filesystem.js
index a23231f4..59d00b2c 100755
--- a/Viewer/features/filesystem.js
+++ b/Viewer/features/filesystem.js
@@ -2365,6 +2365,7 @@ var FileSystemWriterActions = actions.Actions({
 	// XXX use tasks...
 	// XXX check global index ('%I') in crop...
 	// XXX make clean_target more error tolerant...
+	// XXX BUG: exporting and generating previews does odd things... (see keep)
 	exportImages: ['- File/Export/Export ribbons as directories',
 		core.doc`Export ribbons as directories