diff --git a/wp-includes/js/thickbox/thickbox.css b/wp-includes/js/thickbox/thickbox.css
index 43f9081de7..1770f87db0 100644
--- a/wp-includes/js/thickbox/thickbox.css
+++ b/wp-includes/js/thickbox/thickbox.css
@@ -3,12 +3,12 @@
 /* ---------->>> thickbox specific link and font settings <<<------------------------------------------------------*/
 /* ----------------------------------------------------------------------------------------------------------------*/
 #TB_window {
-	font: 12px "Lucida Grande", Verdana, Arial, sans-serif;
+	font: 12px sans-serif;
 	color: #333333;
 }
 
 #TB_secondLine {
-	font: 10px "Lucida Grande", Verdana, Arial, sans-serif;
+	font: 10px sans-serif;
 	color:#666666;
 }