diff --git a/htdocs/bookmarks/bookmarks.lib.php b/htdocs/bookmarks/bookmarks.lib.php
index 46e9ca315a5..93283cab815 100644
--- a/htdocs/bookmarks/bookmarks.lib.php
+++ b/htdocs/bookmarks/bookmarks.lib.php
@@ -60,7 +60,7 @@ function printDropdownBookmarksList()
     }
 
     $searchForm = '<!-- form with POST method by default, will be replaced with GET for external link by js -->'."\n";
-    $searchForm .= '<form id="top-menu-action-bookmark" name="actionbookmark" method="POST" action=""'.(empty($conf->global->MAIN_OPTIMIZEFORTEXTBROWSER) ? 'onsubmit="return false"' : '').'>';
+    $searchForm .= '<form id="top-menu-action-bookmark" name="actionbookmark" method="POST" action=""'.(empty($conf->global->MAIN_OPTIMIZEFORTEXTBROWSER) ? ' onsubmit="return false"' : '').'>';
     $searchForm .= '<input type="hidden" name="token" value="'.newToken().'">';