diff --git a/basis/prettyprint/stylesheet/stylesheet.factor b/basis/prettyprint/stylesheet/stylesheet.factor
index eaed7cba0c..f04893fab3 100644
--- a/basis/prettyprint/stylesheet/stylesheet.factor
+++ b/basis/prettyprint/stylesheet/stylesheet.factor
@@ -31,7 +31,7 @@ PRIVATE>
         ] bind
     ] keep ;
 
-: string-style ( obj -- style )
+: string-style ( str -- style )
     [
         presented set
         COLOR: LightSalmon4 foreground set