diff --git a/lib/libdisk/create_chunk.c b/lib/libdisk/create_chunk.c
index f8f7a21f2f28..646c82971b6e 100644
--- a/lib/libdisk/create_chunk.c
+++ b/lib/libdisk/create_chunk.c
@@ -6,7 +6,7 @@
  * this stuff is worth it, you can buy me a beer in return.   Poul-Henning Kamp
  * ----------------------------------------------------------------------------
  *
- * $Id: create_chunk.c,v 1.27 1997/02/22 15:06:31 peter Exp $
+ * $Id: create_chunk.c,v 1.28 1998/01/16 12:50:36 jkh Exp $
  *
  */
 
@@ -262,6 +262,7 @@ MakeDev(struct chunk *c1, const char *path)
     else if (!strncmp(p, "da", 2))	/* CAM support */
 	bmaj = 4, cmaj = 13;
     else {
+	msgDebug("MakeDev: Unknown major/minor for devtype %s\n", p);
 	return 0;
     }
     p += 2;