diff --git a/wp-admin/wp-admin.css b/wp-admin/wp-admin.css
index f1f4eb1253..61f0f2bc64 100644
--- a/wp-admin/wp-admin.css
+++ b/wp-admin/wp-admin.css
@@ -256,6 +256,7 @@ textarea, input, select {
 
 #poststuff {
 	margin-right: 11em;
+	height: 100%; /* kill peekaboo bug in IE */
 }
 
 #poststuff textarea {