diff --git a/demos/rot13.factor b/demos/rot13.factor
index 762b8b232d..c6a00c146a 100644
--- a/demos/rot13.factor
+++ b/demos/rot13.factor
@@ -13,3 +13,5 @@ USING: kernel math sequences strings ;
     } cond ;
 
 : rot13 ( string -- string ) [ rot-letter ] map ;
+
+PROVIDE: demos/rot13 ;