diff --git a/sys/conf/majors b/sys/conf/majors
index 29ba0c37ef68..405198eb8e46 100644
--- a/sys/conf/majors
+++ b/sys/conf/majors
@@ -18,7 +18,6 @@
 0	*cn		console
 1	*ctty		/dev/tty
 2	*mm		/dev/mem,kmem,etc
-3	*wd		ST506 disk controller (with IDE extensions)
 4	*geom		GEOMetry
 5	*pts		pseudo tty "tty" half
 6	*ptc		pseudo tty "master" half