diff --git a/static/js/itemViewPanel.js b/static/js/itemViewPanel.js
index 8052978..e7aa45c 100644
--- a/static/js/itemViewPanel.js
+++ b/static/js/itemViewPanel.js
@@ -17,7 +17,7 @@ oml.ui.itemViewPanel = function() {
             ],
             orientation: 'horizontal',
             selected: ui.itemView,
-            size: window.innerWidth - ui.sidebarSize - 1
+            size: window.innerWidth - (ui.showSidebar ? ui.sidebarSize : 0) - 1
         })
         .bindEvent({
             oml_itemview: function(data) {
@@ -27,4 +27,4 @@ oml.ui.itemViewPanel = function() {
 
     return that;
 
-};
\ No newline at end of file
+};