diff --git a/sys/conf/majors b/sys/conf/majors
index d1b076d5c34..ff2c5b8ce71 100644
--- a/sys/conf/majors
+++ b/sys/conf/majors
@@ -174,6 +174,8 @@ chrdev	name		comments
 155	phone		Quicknet PhoneJACK and LineJACK cards for VoIP <roger>
 156	uscanner	USB Scanners <n_hibma>
 157	ar		ATA "pseudo" RAID device
+158	gdt		ICP Vortex RAID controller (control device)
+159	gdtd		ICP Vortex RAID controller (disk device)
 200	??		entries from 200-252 are reserved for local use
 252	??		entries from 200-252 are reserved for local use
 253	mfs		Used by MFS