diff --git a/css/bedrock-ui.css b/css/bedrock-ui.css
index 06b42ee..b706f21 100644
--- a/css/bedrock-ui.css
+++ b/css/bedrock-ui.css
@@ -356,6 +356,19 @@ html.js .block-content ul.menu-dropdown .has-children > a {
 .menu-dropdown ul a.highlighted {
   background-color: var(--bedrock-bg-color-highlight);
 }
+/**
+ * Smartmenus: we can fix the arrow colors, but we can not fix the RTL mess.
+ */
+.menu-dropdown a.has-submenu .sub-arrow,
+[dir="rtl"] .menu-dropdown a.has-submenu .sub-arrow {
+  border-color: transparent;
+  border-top-color: currentColor;
+}
+.menu-dropdown ul a.has-submenu span.sub-arrow,
+[dir="rtl"] .menu-dropdown ul a.has-submenu .sub-arrow {
+  border-color: transparent;
+  border-left-color: currentColor;
+}
 /**
  * Fallback solutions when JS is disabled and hover is available.
  */