Index: wp-includes/rewrite.php
===================================================================
--- wp-includes/rewrite.php	(revision 15674)
+++ wp-includes/rewrite.php	(working copy)
@@ -1632,9 +1632,9 @@
 		// Extra permastructs
 		foreach ( $this->extra_permastructs as $permastruct ) {
 			if ( is_array($permastruct) )
-				$this->extra_rules_top = array_merge($this->extra_rules_top, $this->generate_rewrite_rules($permastruct[0], $permastruct[1]));
+				$this->extra_rules_top = array_merge($this->generate_rewrite_rules($permastruct[0], $permastruct[1]), $this->extra_rules_top);
 			else
-				$this->extra_rules_top = array_merge($this->extra_rules_top, $this->generate_rewrite_rules($permastruct, EP_NONE));
+				$this->extra_rules_top = array_merge($this->generate_rewrite_rules($permastruct, EP_NONE), $this->extra_rules_top);
 		}
 
 		// Put them together.