diff --git a/extra/mason/test/test.factor b/extra/mason/test/test.factor
index 5959d4e5ab..467da58be1 100644
--- a/extra/mason/test/test.factor
+++ b/extra/mason/test/test.factor
@@ -52,7 +52,7 @@ M: method word-vocabulary "method-generic" word-prop word-vocabulary ;
 :: do-step ( errors summary-file details-file -- )
     errors
     [ error-type +linkage-error+ eq? ] reject
-    [ file>> ] map members natural-sort summary-file to-file
+    [ path>> ] map members natural-sort summary-file to-file
     errors details-file utf8 [ errors. ] with-file-writer ;
 
 : do-tests ( -- )