diff --git a/collects/mrlib/graph.rkt b/collects/mrlib/graph.rkt
index 0bf6e091..f344631c 100644
--- a/collects/mrlib/graph.rkt
+++ b/collects/mrlib/graph.rkt
@@ -180,8 +180,6 @@
           [(parent) (add-parent parent #f #f #f #f)]
           [(parent dark-pen light-pen dark-brush light-brush)
            (add-parent parent dark-pen light-pen dark-brush light-brush 0 0)]
-          [(parent dark-pen light-pen dark-brush light-brush dx dy)
-           (add-parent parent dark-pen light-pen dark-brush light-brush dx dy #f)]
           [(parent dark-pen light-pen dark-brush light-brush dx dy)
            (add-parent parent dark-pen light-pen dark-brush light-brush #f #f dx dy #f)]
           [(parent dark-pen light-pen dark-brush light-brush dark-text light-text dx dy label)