diff --git a/collects/mred/private/kernel.ss b/collects/mred/private/kernel.ss
index 75d448b3..7daa9a9d 100644
--- a/collects/mred/private/kernel.ss
+++ b/collects/mred/private/kernel.ss
@@ -1226,6 +1226,8 @@
     get-extent)
   (define-class image-snip% snip% #f
     set-offset
+    get-bitmap-mask
+    get-bitmap
     set-bitmap
     get-filetype
     get-filename