diff --git a/collects/compiler/embed-sig.ss b/collects/compiler/embed-sig.ss
index ce20d92c21..16c593fe79 100644
--- a/collects/compiler/embed-sig.ss
+++ b/collects/compiler/embed-sig.ss
@@ -5,5 +5,6 @@
 
   (define-signature compiler:embed^
     (make-embedding-executable
+     write-module-bundle
      embedding-executable-is-directory?
      embedding-executable-put-file-extension+style+filters)))