diff --git a/collects/mrlib/plot.ss b/collects/mrlib/plot.ss
index 20412207..5dc8f57e 100644
--- a/collects/mrlib/plot.ss
+++ b/collects/mrlib/plot.ss
@@ -1,7 +1,7 @@
 (module plot mzscheme
   (require (lib "mred.ss" "mred")
            (lib "class.ss")
-           (lib "contracts.ss"))
+           (lib "contract.ss"))
 
   
   (define-struct data-set (points connected? pen min-x max-x min-y max-y))