diff --git a/addons/website/static/src/snippets/s_table_of_content/000.scss b/addons/website/static/src/snippets/s_table_of_content/000.scss
index bc238f000dd..4f4b83377f6 100644
--- a/addons/website/static/src/snippets/s_table_of_content/000.scss
+++ b/addons/website/static/src/snippets/s_table_of_content/000.scss
@@ -11,6 +11,8 @@
             }
         }
         &.s_table_of_content_vertical_navbar .s_table_of_content_navbar {
+            overflow-wrap: break-word;
+
             > a.list-group-item-action {
                 background: none;
                 color: inherit;