diff --git a/share/man/man4/pf.4 b/share/man/man4/pf.4
--- a/share/man/man4/pf.4
+++ b/share/man/man4/pf.4
@@ -26,7 +26,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.Dd July 12, 2023
+.Dd August 28, 2023
 .Dt PF 4
 .Os
 .Sh NAME
@@ -338,35 +338,40 @@
 fields of the
 .Va state
 nvlist from the state table.
-.It Dv DIOCKILLSTATES Fa "struct pfioc_state_kill *psk"
+.It Dv DIOCKILLSTATESNV Fa "struct pfioc_nv nv"
 Remove matching entries from the state table.
 This ioctl returns the number of killed states in
-.Va psk_killed .
+.Va "killed" .
 .Bd -literal
-struct pfioc_state_kill {
-	struct pf_state_cmp	psk_pfcmp;
-	sa_family_t		psk_af;
-	int			psk_proto;
-	struct pf_rule_addr	psk_src;
-	struct pf_rule_addr	psk_dst;
-	char			psk_ifname[IFNAMSIZ];
-	char			psk_label[PF_RULE_LABEL_SIZE];
-	u_int			psk_killed;
+nvlist pf_state_cmp {
+	number			id;
+	number			creatorid;
+	number			direction;
+};
+
+nvlist pf_kill {
+	nvlist pf_state_cmp	cmp;
+	number			af;
+	number			proto;
+	nvlist pf_rule_addr	src;
+	nvlist pf_rule_addr	dst;
+	string			ifname[IFNAMSIZ];
+	string			label[PF_RULE_LABEL_SIZE];
 };
 .Ed
-.It Dv DIOCCLRSTATES Fa "struct pfioc_state_kill *psk"
+.It Dv DIOCCLRSTATESNV Fa "struct pfioc_nv nv"
 Clear all states.
 It works like
-.Dv DIOCKILLSTATES ,
+.Dv DIOCKILLSTATESNV ,
 but ignores the
-.Va psk_af ,
-.Va psk_proto ,
-.Va psk_src ,
+.Va af ,
+.Va proto ,
+.Va src ,
 and
-.Va psk_dst
+.Va dst
 fields of the
-.Vt pfioc_state_kill
-structure.
+.Vt pf_kill
+nvlist.
 .It Dv DIOCSETSTATUSIF Fa "struct pfioc_if *pi"
 Specify the interface for which statistics are accumulated.
 .Bd -literal
diff --git a/sys/net/pfvar.h b/sys/net/pfvar.h
--- a/sys/net/pfvar.h
+++ b/sys/net/pfvar.h
@@ -1924,7 +1924,6 @@
 #define DIOCGETRULE	_IOWR('D',  7, struct pfioc_rule)
 #define DIOCGETRULENV	_IOWR('D',  7, struct pfioc_nv)
 /* XXX cut 8 - 17 */
-#define DIOCCLRSTATES	_IOWR('D', 18, struct pfioc_state_kill)
 #define DIOCCLRSTATESNV	_IOWR('D', 18, struct pfioc_nv)
 #define DIOCGETSTATE	_IOWR('D', 19, struct pfioc_state)
 #define DIOCGETSTATENV	_IOWR('D', 19, struct pfioc_nv)
@@ -1943,7 +1942,6 @@
 #define DIOCCLRRULECTRS	_IO  ('D', 38)
 #define DIOCGETLIMIT	_IOWR('D', 39, struct pfioc_limit)
 #define DIOCSETLIMIT	_IOWR('D', 40, struct pfioc_limit)
-#define DIOCKILLSTATES	_IOWR('D', 41, struct pfioc_state_kill)
 #define DIOCKILLSTATESNV	_IOWR('D', 41, struct pfioc_nv)
 #define DIOCSTARTALTQ	_IO  ('D', 42)
 #define DIOCSTOPALTQ	_IO  ('D', 43)
diff --git a/sys/netpfil/pf/pf_ioctl.c b/sys/netpfil/pf/pf_ioctl.c
--- a/sys/netpfil/pf/pf_ioctl.c
+++ b/sys/netpfil/pf/pf_ioctl.c
@@ -2124,31 +2124,6 @@
 	return (0);
 }
 
-static int
-pf_state_kill_to_kstate_kill(const struct pfioc_state_kill *psk,
-    struct pf_kstate_kill *kill)
-{
-	int ret;
-
-	bzero(kill, sizeof(*kill));
-
-	bcopy(&psk->psk_pfcmp, &kill->psk_pfcmp, sizeof(kill->psk_pfcmp));
-	kill->psk_af = psk->psk_af;
-	kill->psk_proto = psk->psk_proto;
-	bcopy(&psk->psk_src, &kill->psk_src, sizeof(kill->psk_src));
-	bcopy(&psk->psk_dst, &kill->psk_dst, sizeof(kill->psk_dst));
-	ret = pf_user_strcpy(kill->psk_ifname, psk->psk_ifname,
-	    sizeof(kill->psk_ifname));
-	if (ret != 0)
-		return (ret);
-	ret = pf_user_strcpy(kill->psk_label, psk->psk_label,
-	    sizeof(kill->psk_label));
-	if (ret != 0)
-		return (ret);
-
-	return (0);
-}
-
 static int
 pf_ioctl_addrule(struct pf_krule *rule, uint32_t ticket,
     uint32_t pool_ticket, const char *anchor, const char *anchor_call,
@@ -3694,36 +3669,11 @@
 		break;
 	}
 
-	case DIOCCLRSTATES: {
-		struct pfioc_state_kill *psk = (struct pfioc_state_kill *)addr;
-		struct pf_kstate_kill	 kill;
-
-		error = pf_state_kill_to_kstate_kill(psk, &kill);
-		if (error)
-			break;
-
-		psk->psk_killed = pf_clear_states(&kill);
-		break;
-	}
-
 	case DIOCCLRSTATESNV: {
 		error = pf_clearstates_nv((struct pfioc_nv *)addr);
 		break;
 	}
 
-	case DIOCKILLSTATES: {
-		struct pfioc_state_kill	*psk = (struct pfioc_state_kill *)addr;
-		struct pf_kstate_kill	 kill;
-
-		error = pf_state_kill_to_kstate_kill(psk, &kill);
-		if (error)
-			break;
-
-		psk->psk_killed = 0;
-		pf_killstates(&kill, &psk->psk_killed);
-		break;
-	}
-
 	case DIOCKILLSTATESNV: {
 		error = pf_killstates_nv((struct pfioc_nv *)addr);
 		break;