diff --git a/chrome/content/zotero/overlay.xul b/chrome/content/zotero/overlay.xul
index c11349f83b..8f7499c657 100644
--- a/chrome/content/zotero/overlay.xul
+++ b/chrome/content/zotero/overlay.xul
@@ -394,7 +394,7 @@
 							<label id="zotero-tb-sync-last-sync"/>
 						</tooltip>
 					</toolbarbutton>
-					<toolbarseparator/>
+					<toolbarseparator id="zotero-fullscreen-close-separator"/>
 					<toolbarbutton id="zotero-tb-fullscreen" tooltiptext="&zotero.toolbar.fullscreen.tooltip;" oncommand="ZoteroPane.fullScreen();" class="zotero-tb-button"/>
 					<toolbarbutton id="zotero-close-button" class="tabs-closebutton" oncommand="ZoteroPane.toggleDisplay()"/>
 				</hbox>
diff --git a/chrome/skin/default/zotero/standalone.css b/chrome/skin/default/zotero/standalone.css
index 41d81c4fa5..7fe2486342 100644
--- a/chrome/skin/default/zotero/standalone.css
+++ b/chrome/skin/default/zotero/standalone.css
@@ -1,3 +1,3 @@
-#zotero-tb-item-from-page {
+#zotero-tb-item-from-page, #zotero-tb-fullscreen, #zotero-fullscreen-close-separator {
 	display: none;
 }
\ No newline at end of file