diff --git a/sys/amd64/conf/GENERIC b/sys/amd64/conf/GENERIC
index cf4fb46747ee..40c75355c0c6 100644
--- a/sys/amd64/conf/GENERIC
+++ b/sys/amd64/conf/GENERIC
@@ -53,6 +53,8 @@ options 	COMPAT_FREEBSD4		# Compatible with FreeBSD4
 options 	COMPAT_FREEBSD5		# Compatible with FreeBSD5
 options 	COMPAT_FREEBSD6		# Compatible with FreeBSD6
 options 	COMPAT_FREEBSD7		# Compatible with FreeBSD7
+options 	COMPAT_FREEBSD9		# Compatible with FreeBSD9
+options 	COMPAT_FREEBSD10	# Compatible with FreeBSD10
 options 	SCSI_DELAY=5000		# Delay (in ms) before probing SCSI
 options 	KTRACE			# ktrace(1) support
 options 	STACK			# stack(9) support
diff --git a/sys/arm/conf/ATMEL b/sys/arm/conf/ATMEL
index 59ef417e36cd..6cc6fb4c8eff 100644
--- a/sys/arm/conf/ATMEL
+++ b/sys/arm/conf/ATMEL
@@ -60,6 +60,8 @@ options 	GEOM_LABEL		# Provides labelization
 options 	COMPAT_FREEBSD5		# Compatible with FreeBSD5
 options 	COMPAT_FREEBSD6		# Compatible with FreeBSD6
 options 	COMPAT_FREEBSD7		# Compatible with FreeBSD7
+options 	COMPAT_FREEBSD9		# Compatible with FreeBSD9
+options 	COMPAT_FREEBSD10	# Compatible with FreeBSD10
 options 	SCSI_DELAY=5000		# Delay (in ms) before probing SCSI
 options 	KTRACE			# ktrace(1) support
 options 	STACK			# stack(9) support
diff --git a/sys/conf/NOTES b/sys/conf/NOTES
index bdccfb38c307..4eb25d54f793 100644
--- a/sys/conf/NOTES
+++ b/sys/conf/NOTES
@@ -351,6 +351,12 @@ options 	COMPAT_FREEBSD6
 # Enable FreeBSD7 compatibility syscalls
 options 	COMPAT_FREEBSD7
 
+# Enable FreeBSD9 compatibility syscalls
+options 	COMPAT_FREEBSD9
+
+# Enable FreeBSD10 compatibility syscalls
+options 	COMPAT_FREEBSD10
+
 #
 # These three options provide support for System V Interface
 # Definition-style interprocess communication, in the form of shared
diff --git a/sys/conf/options b/sys/conf/options
index 83375217f89a..f6ad35ac979c 100644
--- a/sys/conf/options
+++ b/sys/conf/options
@@ -83,6 +83,8 @@ COMPAT_FREEBSD4	opt_compat.h
 COMPAT_FREEBSD5	opt_compat.h
 COMPAT_FREEBSD6	opt_compat.h
 COMPAT_FREEBSD7	opt_compat.h
+COMPAT_FREEBSD9	opt_compat.h
+COMPAT_FREEBSD10	opt_compat.h
 COMPILING_LINT	opt_global.h
 COMPRESS_USER_CORES opt_core.h
 CY_PCI_FASTINTR
diff --git a/sys/i386/conf/GENERIC b/sys/i386/conf/GENERIC
index fec8f75d7ce8..b01af819398e 100644
--- a/sys/i386/conf/GENERIC
+++ b/sys/i386/conf/GENERIC
@@ -54,6 +54,8 @@ options 	COMPAT_FREEBSD4		# Compatible with FreeBSD4
 options 	COMPAT_FREEBSD5		# Compatible with FreeBSD5
 options 	COMPAT_FREEBSD6		# Compatible with FreeBSD6
 options 	COMPAT_FREEBSD7		# Compatible with FreeBSD7
+options 	COMPAT_FREEBSD9		# Compatible with FreeBSD9
+options 	COMPAT_FREEBSD10	# Compatible with FreeBSD10
 options 	SCSI_DELAY=5000		# Delay (in ms) before probing SCSI
 options 	KTRACE			# ktrace(1) support
 options 	STACK			# stack(9) support
diff --git a/sys/i386/conf/XEN b/sys/i386/conf/XEN
index cbf37857add0..62bbbb6ba3f5 100644
--- a/sys/i386/conf/XEN
+++ b/sys/i386/conf/XEN
@@ -36,6 +36,8 @@ options 	COMPAT_FREEBSD4		# Compatible with FreeBSD4
 options 	COMPAT_FREEBSD5		# Compatible with FreeBSD5
 options 	COMPAT_FREEBSD6		# Compatible with FreeBSD6
 options 	COMPAT_FREEBSD7		# Compatible with FreeBSD7
+options 	COMPAT_FREEBSD9		# Compatible with FreeBSD9
+options 	COMPAT_FREEBSD10	# Compatible with FreeBSD10
 options 	KTRACE			# ktrace(1) support
 options 	STACK			# stack(9) support
 options 	SYSVSHM			# SYSV-style shared memory
diff --git a/sys/pc98/conf/GENERIC b/sys/pc98/conf/GENERIC
index 9882bc4b1bbf..ea89d3258749 100644
--- a/sys/pc98/conf/GENERIC
+++ b/sys/pc98/conf/GENERIC
@@ -51,6 +51,8 @@ options 	COMPAT_FREEBSD4		# Compatible with FreeBSD4
 options 	COMPAT_FREEBSD5		# Compatible with FreeBSD5
 options 	COMPAT_FREEBSD6		# Compatible with FreeBSD6
 options 	COMPAT_FREEBSD7		# Compatible with FreeBSD7
+options 	COMPAT_FREEBSD9		# Compatible with FreeBSD9
+options 	COMPAT_FREEBSD10	# Compatible with FreeBSD10
 options 	SCSI_DELAY=5000		# Delay (in ms) before probing SCSI
 options 	EPSON_BOUNCEDMA		# use bounce buffer for 15-16M
 #options 	EPSON_MEMWIN		# EPSON memory window support
diff --git a/sys/powerpc/conf/GENERIC b/sys/powerpc/conf/GENERIC
index 784297cc5d0b..dfd5a61945dd 100644
--- a/sys/powerpc/conf/GENERIC
+++ b/sys/powerpc/conf/GENERIC
@@ -59,6 +59,8 @@ options 	COMPAT_FREEBSD4		#Keep this for a while
 options 	COMPAT_FREEBSD5		#Compatible with FreeBSD5
 options 	COMPAT_FREEBSD6		#Compatible with FreeBSD6
 options 	COMPAT_FREEBSD7		#Compatible with FreeBSD7
+options 	COMPAT_FREEBSD9		# Compatible with FreeBSD9
+options 	COMPAT_FREEBSD10	# Compatible with FreeBSD10
 options 	SCSI_DELAY=5000		#Delay (in ms) before probing SCSI 
 options 	KTRACE			#ktrace(1) syscall trace support
 options 	STACK			#stack(9) support
diff --git a/sys/powerpc/conf/GENERIC64 b/sys/powerpc/conf/GENERIC64
index 0003822eaf9e..363625a90d5c 100644
--- a/sys/powerpc/conf/GENERIC64
+++ b/sys/powerpc/conf/GENERIC64
@@ -59,6 +59,8 @@ options 	COMPAT_FREEBSD32	#Compatible with FreeBSD/powerpc binaries
 options 	COMPAT_FREEBSD5		#Compatible with FreeBSD5
 options 	COMPAT_FREEBSD6		#Compatible with FreeBSD6
 options 	COMPAT_FREEBSD7		#Compatible with FreeBSD7
+options 	COMPAT_FREEBSD9		# Compatible with FreeBSD9
+options 	COMPAT_FREEBSD10	# Compatible with FreeBSD10
 options 	SCSI_DELAY=5000		#Delay (in ms) before probing SCSI 
 options 	KTRACE			#ktrace(1) syscall trace support
 options 	STACK			#stack(9) support
diff --git a/sys/sparc64/conf/GENERIC b/sys/sparc64/conf/GENERIC
index 575476d8524c..306f1dad24bb 100644
--- a/sys/sparc64/conf/GENERIC
+++ b/sys/sparc64/conf/GENERIC
@@ -51,6 +51,8 @@ options 	GEOM_LABEL		# Provides labelization
 options 	COMPAT_FREEBSD5		# Compatible with FreeBSD5
 options 	COMPAT_FREEBSD6		# Compatible with FreeBSD6
 options 	COMPAT_FREEBSD7		# Compatible with FreeBSD7
+options 	COMPAT_FREEBSD9		# Compatible with FreeBSD9
+options 	COMPAT_FREEBSD10	# Compatible with FreeBSD10
 options 	SCSI_DELAY=5000		# Delay (in ms) before probing SCSI
 options 	KTRACE			# ktrace(1) support
 options 	STACK			# stack(9) support