diff --git a/pattern.rkt b/pattern.rkt
index 49384b9..f81063e 100644
--- a/pattern.rkt
+++ b/pattern.rkt
@@ -2,7 +2,6 @@
 
 (require racket/match)
 (require (only-in racket/class object?))
-(require "struct-map.rkt")
 
 (provide ?
 	 wildcard?