diff --git a/extra/mason/git/git.factor b/extra/mason/git/git.factor
index 71a71b6ccb..15737831b3 100644
--- a/extra/mason/git/git.factor
+++ b/extra/mason/git/git.factor
@@ -55,7 +55,7 @@ IN: mason.git
     ] [ rethrow ] if ;
 
 : with-process-reader* ( desc encoding quot -- )
-    [ <process-reader*> ] dip swap [ with-input-stream ] dip
+    [ (process-reader) ] dip swap [ with-input-stream ] dip
     dup wait-for-process dup { 0 1 } member?
     [ 2drop ] [ process-failed ] if ; inline