diff --git a/lib/libc/sys/Makefile.inc b/lib/libc/sys/Makefile.inc
--- a/lib/libc/sys/Makefile.inc
+++ b/lib/libc/sys/Makefile.inc
@@ -430,6 +430,7 @@
 	jail.2 jail_set.2
 MLINKS+=kldunload.2 kldunloadf.2
 MLINKS+=kqueue.2 kevent.2 \
+	kqueue.2 kqueue1.2 \
 	kqueue.2 EV_SET.3
 MLINKS+=link.2 linkat.2
 MLINKS+=madvise.2 posix_madvise.2
diff --git a/lib/libc/sys/Symbol.map b/lib/libc/sys/Symbol.map
--- a/lib/libc/sys/Symbol.map
+++ b/lib/libc/sys/Symbol.map
@@ -419,6 +419,7 @@
 FBSD_1.7 {
 	_Fork;
 	fspacectl;
+	kqueue1;
 	swapoff;
 };
 
diff --git a/lib/libc/sys/kqueue.2 b/lib/libc/sys/kqueue.2
--- a/lib/libc/sys/kqueue.2
+++ b/lib/libc/sys/kqueue.2
@@ -24,7 +24,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd May 14, 2022
+.Dd March 26, 2023
 .Dt KQUEUE 2
 .Os
 .Sh NAME
@@ -38,6 +38,8 @@
 .Ft int
 .Fn kqueue "void"
 .Ft int
+.Fn kqueue1 "u_int flags"
+.Ft int
 .Fo kevent
 .Fa "int kq"
 .Fa "const struct kevent *changelist"
@@ -90,6 +92,22 @@
 which will allow sharing of the kqueue between two processes.
 .Pp
 The
+.Fn kqueue1
+system call also creates a new kernel event queue, and additionally takes
+the
+.Fa flags
+argument, which is logically or-ed by the following flags:
+.Bl -tag -width "KQUEUE_CLOEXEC"
+.It Fa KQUEUE_CLOEXEC
+The returned file descriptor is automatically closed on
+.Xr execve 2
+.El
+The
+.Ql fd = kqueue()
+call is equivalent to
+.Ql fd = kqueue1(0) .
+.Pp
+The
 .Fn kevent
 system call
 is used to register events with the queue, and return any pending
diff --git a/sys/kern/kern_event.c b/sys/kern/kern_event.c
--- a/sys/kern/kern_event.c
+++ b/sys/kern/kern_event.c
@@ -1057,6 +1057,19 @@
 	return (kern_kqueue(td, 0, NULL));
 }
 
+int
+sys_kqueue1(struct thread *td, struct kqueue1_args *uap)
+{
+	int flags;
+
+	if ((uap->flags & ~(KQUEUE_CLOEXEC)) != 0)
+		return (EINVAL);
+	flags = 0;
+	if ((uap->flags & KQUEUE_CLOEXEC) != 0)
+		flags |= O_CLOEXEC;
+	return (kern_kqueue(td, flags, NULL));
+}
+
 static void
 kqueue_init(struct kqueue *kq)
 {
diff --git a/sys/kern/syscalls.master b/sys/kern/syscalls.master
--- a/sys/kern/syscalls.master
+++ b/sys/kern/syscalls.master
@@ -3306,5 +3306,10 @@
 		    u_int flags,
 		);
 	}
+583	AUE_KQUEUE	STD|CAPENABLED {
+		int kqueue1(
+		    u_int flags
+		);
+	}
 
 ; vim: syntax=off
diff --git a/sys/sys/event.h b/sys/sys/event.h
--- a/sys/sys/event.h
+++ b/sys/sys/event.h
@@ -218,6 +218,9 @@
 #define NOTE_NSECONDS		0x00000008	/* data is nanoseconds */
 #define	NOTE_ABSTIME		0x00000010	/* timeout is absolute */
 
+/* Flags for kqueue1(2) */
+#define	KQUEUE_CLOEXEC	0x00000001	/* close on exec */
+
 struct knote;
 SLIST_HEAD(klist, knote);
 struct kqueue;
@@ -358,6 +361,7 @@
 
 __BEGIN_DECLS
 int     kqueue(void);
+int     kqueue1(u_int flags);
 int     kevent(int kq, const struct kevent *changelist, int nchanges,
 	    struct kevent *eventlist, int nevents,
 	    const struct timespec *timeout);