diff --git a/sys/ia64/conf/GENERIC b/sys/ia64/conf/GENERIC
index 4b3a2996ebb..812b439236f 100644
--- a/sys/ia64/conf/GENERIC
+++ b/sys/ia64/conf/GENERIC
@@ -49,6 +49,7 @@ options 	CD9660			#ISO 9660 Filesystem
 options 	PROCFS			#Process filesystem (requires PSEUDOFS)
 options 	PSEUDOFS		#Pseudo-filesystem framework
 options 	COMPAT_43		#Compatible with BSD 4.3 [KEEP THIS!]
+options 	COMPAT_FREEBSD4		#Keep this for a while
 options 	SCSI_DELAY=15000	#Delay (in ms) before probing SCSI 
 options 	KTRACE			#ktrace(1) syscall trace support
 options 	SYSVSHM			#SYSV-style shared memory