diff --git a/pkgs/gui-pkgs/gui-lib/mred/private/wxme/text.rkt b/pkgs/gui-pkgs/gui-lib/mred/private/wxme/text.rkt
index 243632f8..1dbc018b 100644
--- a/pkgs/gui-pkgs/gui-lib/mred/private/wxme/text.rkt
+++ b/pkgs/gui-pkgs/gui-lib/mred/private/wxme/text.rkt
@@ -4945,8 +4945,8 @@
 
           (set! auto-wrap-bitmap bm)
           (if auto-wrap-bitmap
-              (set! wrap-bitmap-width (send auto-wrap-bitmap get-width))
-              (set! wrap-bitmap-width 0))
+              (set! wrap-bitmap-width (exact->inexact (send auto-wrap-bitmap get-width)))
+              (set! wrap-bitmap-width 0.0))
 
           (when (max-width . > . 0)
             (set-max-width (+ max-width old-width)))