diff --git a/collects/mred/mred.ss b/collects/mred/mred.ss
index b90e7d7d..912e3cf9 100644
--- a/collects/mred/mred.ss
+++ b/collects/mred/mred.ss
@@ -2224,7 +2224,7 @@
       [on-container-resize (lambda ()
 			     (let ([edit (get-editor)])
 			       (when edit
-				 (as-exit (lambda () (send edit on-display-size))))))]
+				 (as-exit (lambda () (send edit on-display-size-when-ready))))))]
       [on-set-focus
        (entry-point
 	(lambda ()
diff --git a/collects/mred/private/kernel.ss b/collects/mred/private/kernel.ss
index 12d47a29..d666c0b5 100644
--- a/collects/mred/private/kernel.ss
+++ b/collects/mred/private/kernel.ss
@@ -255,6 +255,7 @@
     resized
     set-caret-owner
     scroll-to
+    on-display-size-when-ready
     on-display-size
     on-change
     on-focus
@@ -847,6 +848,7 @@
     resized
     set-caret-owner
     scroll-to
+    on-display-size-when-ready
     on-display-size
     on-change
     on-focus
@@ -1051,6 +1053,7 @@
     resized
     set-caret-owner
     scroll-to
+    on-display-size-when-ready
     on-display-size
     on-change
     on-focus