diff --git a/core/themes/bartik/css/components/vertical-tabs.component.css b/core/themes/bartik/css/components/vertical-tabs.component.css
index 56eb6b0..444fd9d 100644
--- a/core/themes/bartik/css/components/vertical-tabs.component.css
+++ b/core/themes/bartik/css/components/vertical-tabs.component.css
@@ -6,4 +6,6 @@ ul.vertical-tabs-list {
 [dir="rtl"] ul.vertical-tabs-list {
   margin-left: 0;
   margin-right: -15em;
+  /* This is required to win specificity over [dir="rtl"] .region-content ul */
+  padding: 0;
 }