diff --git a/collects/mred/private/wx/cocoa/canvas.rkt b/collects/mred/private/wx/cocoa/canvas.rkt
index e023ebe7..434c113d 100644
--- a/collects/mred/private/wx/cocoa/canvas.rkt
+++ b/collects/mred/private/wx/cocoa/canvas.rkt
@@ -4,7 +4,8 @@
          racket/class
          racket/draw
          racket/draw/private/gl-context
-         (except-in racket/draw/private/color color%)
+         (except-in racket/draw/private/color
+                    color% make-immutable-color)
          (only-in racket/draw/private/bitmap quartz-bitmap%)
          "pool.rkt"
          "utils.rkt"
diff --git a/collects/mred/private/wx/gtk/canvas.rkt b/collects/mred/private/wx/gtk/canvas.rkt
index fc8b44ff..80adf564 100644
--- a/collects/mred/private/wx/gtk/canvas.rkt
+++ b/collects/mred/private/wx/gtk/canvas.rkt
@@ -3,7 +3,8 @@
          racket/class
          racket/draw
          ffi/unsafe/alloc
-         (except-in racket/draw/private/color color%)
+         (except-in racket/draw/private/color
+                    color% make-immutable-color)
          racket/draw/private/local
          "../common/backing-dc.rkt"
          "../common/canvas-mixin.rkt"