diff --git a/sys/alpha/conf/GENERIC b/sys/alpha/conf/GENERIC
index 8f22210b1b3..ff62613ba3b 100644
--- a/sys/alpha/conf/GENERIC
+++ b/sys/alpha/conf/GENERIC
@@ -60,6 +60,7 @@ 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		#Compatible with FreeBSD4
 options 	SCSI_DELAY=15000	#Delay (in ms) before probing SCSI 
 options 	KTRACE			#ktrace(1) syscall trace support
 options 	SYSVSHM			#SYSV-style shared memory
diff --git a/sys/alpha/conf/NOTES b/sys/alpha/conf/NOTES
index 8f22210b1b3..ff62613ba3b 100644
--- a/sys/alpha/conf/NOTES
+++ b/sys/alpha/conf/NOTES
@@ -60,6 +60,7 @@ 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		#Compatible with FreeBSD4
 options 	SCSI_DELAY=15000	#Delay (in ms) before probing SCSI 
 options 	KTRACE			#ktrace(1) syscall trace support
 options 	SYSVSHM			#SYSV-style shared memory
diff --git a/sys/conf/NOTES b/sys/conf/NOTES
index db36db85191..cc468a2cec1 100644
--- a/sys/conf/NOTES
+++ b/sys/conf/NOTES
@@ -172,6 +172,9 @@ options		MUTEX_PROFILING
 #
 options 	COMPAT_43
 
+# Enable FreeBSD4 compatibility syscalls
+options 	COMPAT_FREEBSD4
+
 #
 # These three options provide support for System V Interface
 # Definition-style interprocess communication, in the form of shared
diff --git a/sys/i386/conf/NOTES b/sys/i386/conf/NOTES
index 3bed5100e15..6d533109976 100644
--- a/sys/i386/conf/NOTES
+++ b/sys/i386/conf/NOTES
@@ -874,9 +874,6 @@ options 	COMPAT_LINUX
 # and PSEUDOFS)
 options 	LINPROCFS
 
-# Enable FreeBSD4 compatibility syscalls
-options		COMPAT_FREEBSD4
-
 #
 # SysVR4 ABI emulation
 #
diff --git a/sys/pc98/conf/GENERIC b/sys/pc98/conf/GENERIC
index 5d15a91cbcf..e7d5875159a 100644
--- a/sys/pc98/conf/GENERIC
+++ b/sys/pc98/conf/GENERIC
@@ -46,6 +46,7 @@ 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		#Compatible with FreeBSD4
 options 	SCSI_DELAY=15000	#Delay (in ms) before probing SCSI
 options 	EPSON_BOUNCEDMA		#use bounce buufer for 15-16M
 #options 	EPSON_MEMWIN		#EPSON memory window support