diff --git a/phpBB/styles/prosilver/theme/bidi.css b/phpBB/styles/prosilver/theme/bidi.css
index 109312ac1b..f441784d85 100644
--- a/phpBB/styles/prosilver/theme/bidi.css
+++ b/phpBB/styles/prosilver/theme/bidi.css
@@ -236,6 +236,7 @@
 }
 
 .rtl a.top2 {
+	background-position: 100% 50%;
 	padding-left: 0;
 	padding-right: 15px;
 }