diff --git a/templates/base/layouts/tab-container/layout.html.twig b/templates/base/layouts/tab-container/layout.html.twig
index b2e9dfba50..4067ecf32b 100644
--- a/templates/base/layouts/tab-container/layout.html.twig
+++ b/templates/base/layouts/tab-container/layout.html.twig
@@ -77,7 +77,7 @@
                     {% endfor %}
                 </div>
             {% else %}
-                <div id="{{ oUIBlock.GetId() }}--tab-container-list" class="ibo-tab-container--tab-container-list{" data-role="ibo-tab-container--tab-container-list">
+                <div id="{{ oUIBlock.GetId() }}--tab-container-list" class="ibo-tab-container--tab-container-list" data-role="ibo-tab-container--tab-container-list">
                 {% for oTab in oUIBlock.GetSubBlocks() %}
                     <div id="tab_{{ oTab.GetId()|sanitize(constant('utils::ENUM_SANITIZATION_FILTER_ELEMENT_IDENTIFIER')) }}"
                          class="ibo-tab-container--tab-container">