diff --git a/sys/conf/Makefile.alpha b/sys/conf/Makefile.alpha
index ef094bbac00a..25de7507c034 100644
--- a/sys/conf/Makefile.alpha
+++ b/sys/conf/Makefile.alpha
@@ -17,7 +17,7 @@
 #
 
 # Which version of config(8) is required.
-%VERSREQ=	500003
+%VERSREQ=	500004
 
 # Can be overridden by makeoptions or /etc/make.conf
 KERNEL_KO?=	kernel
diff --git a/sys/conf/Makefile.i386 b/sys/conf/Makefile.i386
index e58a5fdf6896..18f6539ba16f 100644
--- a/sys/conf/Makefile.i386
+++ b/sys/conf/Makefile.i386
@@ -17,7 +17,7 @@
 #
 
 # Which version of config(8) is required.
-%VERSREQ=	500003
+%VERSREQ=	500004
 
 # Can be overridden by makeoptions or /etc/make.conf
 KERNEL_KO?=	kernel
diff --git a/sys/conf/Makefile.ia64 b/sys/conf/Makefile.ia64
index dacc1f65535a..91c4501f0a3e 100644
--- a/sys/conf/Makefile.ia64
+++ b/sys/conf/Makefile.ia64
@@ -27,7 +27,7 @@ OBJCOPY=	ia64-unknown-linux-objcopy
 MACHINE_ARCH=	ia64
 
 # Which version of config(8) is required.
-%VERSREQ=	500003
+%VERSREQ=	500004
 
 # Can be overridden by makeoptions or /etc/make.conf
 KERNEL_KO?=	kernel
diff --git a/sys/conf/Makefile.pc98 b/sys/conf/Makefile.pc98
index 3ec594352545..386a9cb5766c 100644
--- a/sys/conf/Makefile.pc98
+++ b/sys/conf/Makefile.pc98
@@ -19,7 +19,7 @@
 #
 
 # Which version of config(8) is required.
-%VERSREQ=	500003
+%VERSREQ=	500004
 
 # Can be overridden by makeoptions or /etc/make.conf
 KERNEL_KO?=	kernel
diff --git a/sys/conf/Makefile.powerpc b/sys/conf/Makefile.powerpc
index e58a5fdf6896..18f6539ba16f 100644
--- a/sys/conf/Makefile.powerpc
+++ b/sys/conf/Makefile.powerpc
@@ -17,7 +17,7 @@
 #
 
 # Which version of config(8) is required.
-%VERSREQ=	500003
+%VERSREQ=	500004
 
 # Can be overridden by makeoptions or /etc/make.conf
 KERNEL_KO?=	kernel
diff --git a/usr.sbin/config/config.y b/usr.sbin/config/config.y
index a0352b58b4a2..4c9a448754ba 100644
--- a/usr.sbin/config/config.y
+++ b/usr.sbin/config/config.y
@@ -13,6 +13,7 @@
 %token	HINTS
 %token	IDENT
 %token	MAXUSERS
+%token	PROFILE
 %token	OPTIONS
 %token	MAKEOPTIONS
 %token	SEMICOLON
@@ -145,6 +146,8 @@ Config_spec:
 		|
 	MAXUSERS NUMBER
 	      = { maxusers = $2; } |
+	PROFILE NUMBER
+	      = { profiling = $2; } |
 	HINTS ID
 	      = {
 		      hints = $2;
diff --git a/usr.sbin/config/configvers.h b/usr.sbin/config/configvers.h
index a797e64d5dc1..40226d7776f7 100644
--- a/usr.sbin/config/configvers.h
+++ b/usr.sbin/config/configvers.h
@@ -8,4 +8,4 @@
  *
  * $FreeBSD$
  */
-#define	CONFIGVERS	500003
+#define	CONFIGVERS	500004
diff --git a/usr.sbin/config/lang.l b/usr.sbin/config/lang.l
index c64add73ce6e..0b6ad074bbae 100644
--- a/usr.sbin/config/lang.l
+++ b/usr.sbin/config/lang.l
@@ -58,6 +58,7 @@ struct kt {
 	{ "machine",	ARCH }, /* MACHINE is defined in /sys/param.h */
 	{ "makeoptions", MAKEOPTIONS },
 	{ "maxusers",	MAXUSERS },
+	{ "profile",	PROFILE },
 	{ "option",	OPTIONS },
 	{ "options",	OPTIONS },
 	{ 0, 0 },