Index: wp-content/themes/twentythirteen/css/ie.css
===================================================================
--- wp-content/themes/twentythirteen/css/ie.css	(revision 23592)
+++ wp-content/themes/twentythirteen/css/ie.css	(working copy)
@@ -138,6 +138,10 @@
 	content: none;
 }
 
+.ie8 .site-main .widget-area {
+	margin-right: 0;
+}
+
 
 /* Internet Explorer 7 */
 .ie7 .assistive-text,