diff --git a/astro/Makefile b/astro/Makefile
index 7d8515fc4f4..32a656e34a7 100644
--- a/astro/Makefile
+++ b/astro/Makefile
@@ -1,6 +1,7 @@
-# $OpenBSD: Makefile,v 1.22 2007/03/25 12:30:22 ajacoutot Exp $
+# $OpenBSD: Makefile,v 1.23 2007/07/16 17:40:26 ajacoutot Exp $
 # $FreeBSD: Makefile,v 1.4 1997/06/03 09:14:50 asami Exp $
 
+     SUBDIR += celestia
      SUBDIR += dgpsip
      SUBDIR += jday
      SUBDIR += luna