diff --git a/resources/skins.vector.styles/MenuDropdown.less b/resources/skins.vector.styles/MenuDropdown.less
index ffa5190..7415f10 100644
--- a/resources/skins.vector.styles/MenuDropdown.less
+++ b/resources/skins.vector.styles/MenuDropdown.less
@@ -73,7 +73,7 @@
 
 	// This is in a separate block, so that browsers supporting :hover but not :checked still apply the rule above
 	// Support: IE8
-	.vector-menu-checkbox:checked ~ .vector-menu-content-list {
+	.vector-menu-checkbox:checked ~ .vector-menu-content .vector-menu-content-list {
 		opacity: 1;
 		visibility: visible;
 	}