diff --git a/collects/htdp/info.ss b/collects/htdp/info.ss
index 38b3d85364..08a560d6f3 100644
--- a/collects/htdp/info.ss
+++ b/collects/htdp/info.ss
@@ -1,2 +1,4 @@
 (module info (lib "infotab.ss" "setup")
-  (define name "HtDP Teachpacks"))
+  (define name "HtDP Teachpacks")
+  (define compile-omit-files
+    '("hangman-world.ss" "hangman-world-play.ss")))