diff --git a/basis/compiler/tree/debugger/debugger.factor b/basis/compiler/tree/debugger/debugger.factor
index 214be18148..a1d8773484 100644
--- a/basis/compiler/tree/debugger/debugger.factor
+++ b/basis/compiler/tree/debugger/debugger.factor
@@ -86,7 +86,7 @@ M: #shuffle node>quot
         {
             [ dup [ in-r>> empty? ] [ out-r>> empty? ] bi and ]
             [
-                dup shuffle-effect pretty-shuffle
+                shuffle-effect dup pretty-shuffle
                 [ % ] [ shuffle-node boa , ] ?if
             ]
         }