diff --git a/README.md b/README.md
index 7503a4b..bd6b787 100644
--- a/README.md
+++ b/README.md
@@ -54,7 +54,7 @@ Try entering the following in the interaction area:
 
 Don't like parenthesis? Use Cur with sweet-expressions:
 ```racket
-#lang sweet-exp
+#lang sweet-exp cur
 require
  cur/stdlib/bool
  cur/stdlib/nat