diff --git a/apps/documenteditor/main/app/controller/LeftMenu.js b/apps/documenteditor/main/app/controller/LeftMenu.js
index f454f1769..108f88eb0 100644
--- a/apps/documenteditor/main/app/controller/LeftMenu.js
+++ b/apps/documenteditor/main/app/controller/LeftMenu.js
@@ -602,7 +602,7 @@ define([
         },
 
         updatePreviewMode: function() {
-            var viewmode = this._state.disableEditing || this._state.docProtection.isReadOnly || this._state.docProtection.isFormsOnly;
+            var viewmode = this._state.disableEditing || this._state.docProtection.isReadOnly || this._state.docProtection.isFormsOnly || this._state.docProtection.isCommentsOnly;
             if (this.viewmode === viewmode) return;
             this.viewmode = viewmode;