diff --git a/files_reader/js/plugin.js b/files_reader/js/plugin.js
index 329cddb..8950b61 100644
--- a/files_reader/js/plugin.js
+++ b/files_reader/js/plugin.js
@@ -79,7 +79,7 @@
if (isMobile || hasTouch) {
window.open(viewer, downloadUrl);
} else {
- $iframe = '';
+ $iframe = '';
if (isFileList === true) {
FileList.setViewerMode(true);
}