diff --git a/collects/mred/private/wx/cocoa/canvas.rkt b/collects/mred/private/wx/cocoa/canvas.rkt
index 4da1898222..ad54429629 100644
--- a/collects/mred/private/wx/cocoa/canvas.rkt
+++ b/collects/mred/private/wx/cocoa/canvas.rkt
@@ -407,7 +407,7 @@
 
      (define/override (show-children)
        (super show-children)
-       (fix-dc)
+       ;; (fix-dc) ; inteferes with `paint-children''
        (resume-all-reg-blits))
 
      (define/override (fixup-locations-children)