diff --git a/modules/UI/UI.js b/modules/UI/UI.js
index 57b0ea27f..042acec7f 100644
--- a/modules/UI/UI.js
+++ b/modules/UI/UI.js
@@ -802,6 +802,9 @@ UI.getLargeVideoID = function () {
     return VideoLayout.getLargeVideoID();
 };
 
+/**
+ * Shows dialog with a link to FF extension.
+ */
 UI.showExtensionRequiredDialog = function (url) {
     APP.UI.messageHandler.openMessageDialog(
         "dialog.extensionRequired",
@@ -809,6 +812,6 @@ UI.showExtensionRequiredDialog = function (url) {
         null,
         APP.translation.generateTranslationHTML(
             "dialog.firefoxExtensionPrompt", {url: url}));
-}
+};
 
 module.exports = UI;
diff --git a/modules/desktopsharing/desktopsharing.js b/modules/desktopsharing/desktopsharing.js
index 0b9bb69c5..603c12f89 100644
--- a/modules/desktopsharing/desktopsharing.js
+++ b/modules/desktopsharing/desktopsharing.js
@@ -122,7 +122,7 @@ module.exports = {
             {
                 eventEmitter.emit(
                     DSEvents.FIREFOX_EXTENSION_NEEDED,
-                    config.desktopSharingFirefoxExtensionURL)
+                    config.desktopSharingFirefoxExtensionURL);
                 return;
             }
             fail();