factor: use ??if instead of ?if-old

[factor.git] / core / vocabs / vocabs.factor

diff --git a/core/vocabs/vocabs.factor b/core/vocabs/vocabs.factor
index b56374f86882f63898c0377aacdaedd5fb48cc5c..5280784c1dd235f8da7ac14723b4b7e850930d2e 100644 (file)
--- a/core/vocabs/vocabs.factor
+++ b/core/vocabs/vocabs.factor
@@ -131,7 +131,7 @@ GENERIC: >vocab-link ( name -- vocab )
 
 M: vocab-spec >vocab-link ;
 
-M: object >vocab-link dup lookup-vocab [ ] [ <vocab-link> ] ?if ;
+M: object >vocab-link [ lookup-vocab ] [ <vocab-link> ] ?unless ;
 
 <PRIVATE