classes.mixin: fix definitions for MIXIN:.

diff --git a/core/classes/mixin/mixin.factor b/core/classes/mixin/mixin.factor
index ec5c2ef2e41e14eadd4c550a23b4e7a58e63ec15..2f9204a246787bd66613fa11e8149af3090e9e39 100644 (file)
--- a/core/classes/mixin/mixin.factor
+++ b/core/classes/mixin/mixin.factor
@@ -18,6 +18,8 @@ M: mixin-class reset-class
 
 M: mixin-class rank-class drop 8 ;
 
+M: mixin-class definer drop \ MIXIN: f ;
+
 TUPLE: check-mixin-class class ;
 
 : check-mixin-class ( mixin -- mixin )