diff --git a/phpBB/styles/prosilver/template/ucp_pm_viewmessage_print.html b/phpBB/styles/prosilver/template/ucp_pm_viewmessage_print.html
index 9377eeb9f5..7a8849258a 100644
--- a/phpBB/styles/prosilver/template/ucp_pm_viewmessage_print.html
+++ b/phpBB/styles/prosilver/template/ucp_pm_viewmessage_print.html
@@ -8,6 +8,7 @@
 <title>{SITENAME} &bull; {PAGE_TITLE}</title>
 
 <link href="{T_THEME_PATH}/print.css" rel="stylesheet">
+<link href="{T_THEME_PATH}/bidi.css" rel="stylesheet">
 <!-- EVENT ucp_pm_viewmessage_print_head_append -->
 </head>
 <body id="phpbb">
