diff --git a/sys/conf/newvers.sh b/sys/conf/newvers.sh
index 3cb211b..50fe46f 100644
--- a/sys/conf/newvers.sh
+++ b/sys/conf/newvers.sh
@@ -150,6 +150,7 @@ if [ -n "$p4_cmd" ] ; then
 	esac
 fi
 	
+compiler=`cc --version | head -1`
 
 cat << EOF > vers.c
 $COPYRIGHT
@@ -163,6 +164,7 @@ char ostype[] = "${TYPE}";
 char osrelease[sizeof(RELSTR) > 32 ? sizeof(RELSTR) : 32] = RELSTR;
 int osreldate = ${RELDATE};
 char kern_ident[] = "${i}";
+char compiler[] = "${compiler}";
 EOF
 
 echo $((v + 1)) > version
diff --git a/sys/kern/init_main.c b/sys/kern/init_main.c
index c30e1a2..3e5fbf1 100644
--- a/sys/kern/init_main.c
+++ b/sys/kern/init_main.c
@@ -327,11 +327,19 @@ print_version(void *data __unused)
 	printf("%.*s %s\n", len, version, machine);
 }
 
+static void
+print_compiler(void *data __unused)
+{
+
+	printf("Compiled with %s\n", compiler);
+}
+
 SYSINIT(announce, SI_SUB_COPYRIGHT, SI_ORDER_FIRST, print_caddr_t,
     copyright);
 SYSINIT(trademark, SI_SUB_COPYRIGHT, SI_ORDER_SECOND, print_caddr_t,
     trademark);
 SYSINIT(version, SI_SUB_COPYRIGHT, SI_ORDER_THIRD, print_version, NULL);
+SYSINIT(compiler, SI_SUB_COPYRIGHT, SI_ORDER_THIRD, print_compiler, NULL);
 
 #ifdef WITNESS
 static char wit_warn[] =
@@ -351,6 +359,9 @@ SYSINIT(diagwarn2, SI_SUB_RUN_SCHEDULER, SI_ORDER_THIRD + 2,
     print_caddr_t, diag_warn);
 #endif
 
+SYSCTL_STRING(_kern, OID_AUTO, compiler, CTLFLAG_RD, compiler, 0,
+	"Compiler used to build this kernel");
+
 static int
 null_fetch_syscall_args(struct thread *td __unused,
     struct syscall_args *sa __unused)
diff --git a/sys/sys/systm.h b/sys/sys/systm.h
index fec77d2..d7f79eb 100644
--- a/sys/sys/systm.h
+++ b/sys/sys/systm.h
@@ -49,6 +49,7 @@ extern int cold;		/* nonzero if we are doing a cold boot */
 extern int rebooting;		/* kern_reboot() has been called. */
 extern const char *panicstr;	/* panic message */
 extern char version[];		/* system version */
+extern char compiler[];		/* used compiler */
 extern char copyright[];	/* system copyright */
 extern int kstack_pages;	/* number of kernel stack pages */