diff --git a/pkgs/pict-pkgs/pict-lib/texpict/private/common-sig.rkt b/pkgs/pict-pkgs/pict-lib/texpict/private/common-sig.rkt
index 0788f36060..581176b191 100644
--- a/pkgs/pict-pkgs/pict-lib/texpict/private/common-sig.rkt
+++ b/pkgs/pict-pkgs/pict-lib/texpict/private/common-sig.rkt
@@ -4,7 +4,7 @@
   (provide texpict-common^)
   (define-signature texpict-common^
     ((struct pict (draw width height ascent descent children panbox last))
-     (struct child (pict dx dy sx sy))
+     (struct child (pict dx dy sx sy sxy syx))
 
      black-and-white