diff --git a/extra/compiler/graphviz/graphviz.factor b/extra/compiler/graphviz/graphviz.factor
index 79a72b33ea..3e9dbc2849 100644
--- a/extra/compiler/graphviz/graphviz.factor
+++ b/extra/compiler/graphviz/graphviz.factor
@@ -58,7 +58,7 @@ IN: compiler.graphviz
 
 : cfg-vertex, ( bb -- )
     [ number>> number>string ]
-    [ kill-block? { "color=grey" "style=filled" } { } ? ]
+    [ kill-block?>> { "color=grey" "style=filled" } { } ? ]
     bi node-style, ;
 
 : cfgs ( cfgs -- )