diff --git a/wp-content/themes/twentyten/style.css b/wp-content/themes/twentyten/style.css
index a6b59599c9..5dbf6317b6 100644
--- a/wp-content/themes/twentyten/style.css
+++ b/wp-content/themes/twentyten/style.css
@@ -449,6 +449,7 @@ div.menu li {
 -------------------------------------------------------------- */
 
 #main {
+	clear: both;
 	overflow: hidden;
 	padding: 40px 0 0 0;
 }