diff --git a/tests/sys/vm/stack/stack_mprotect_exec_test.c b/tests/sys/vm/stack/stack_mprotect_exec_test.c
index d12d99ea39ee..ba5a1d5cb859 100644
--- a/tests/sys/vm/stack/stack_mprotect_exec_test.c
+++ b/tests/sys/vm/stack/stack_mprotect_exec_test.c
@@ -1,48 +1,57 @@
 /*-
  * Copyright (c) 2023 Dmitry Chagin <dchagin@FreeBSD.org>
  *
  * SPDX-License-Identifier: BSD-2-Clause
  *
  * PR:	272585
  * Test provided by John F. Carr
  */
 
 #include <sys/systm.h>
 #include <sys/mman.h>
 #include <vm/vm_param.h>
 
 #include <atf-c.h>
+#include <signal.h>
 #include <unistd.h>
 
+static void
+sigsegv_handler(int sig __unused)
+{
+
+	atf_tc_fail("Invalid stack protection mode after grows");
+}
 
 ATF_TC_WITHOUT_HEAD(mprotect_exec_test);
 ATF_TC_BODY(mprotect_exec_test, tc)
 {
 	long pagesize;
 	char *addr, *guard;
 	size_t alloc_size;
 
+	signal(SIGSEGV, sigsegv_handler);
+
 	pagesize = sysconf(_SC_PAGESIZE);
 	ATF_REQUIRE(pagesize > 0);
 
 	alloc_size = SGROWSIZ * 2;
 	addr = mmap(NULL, alloc_size, PROT_READ | PROT_WRITE,
 	    MAP_STACK | MAP_PRIVATE | MAP_ANON, -1, 0);
 	ATF_REQUIRE(addr != MAP_FAILED);
 
 	/*
 	 * Change prot of the last page in the mmaped stack area.
 	 */
 	guard = addr + alloc_size - SGROWSIZ;
 	ATF_REQUIRE(mprotect(guard, pagesize, PROT_NONE) == 0);
 
 	((volatile char *)guard)[-1];
 }
 
 ATF_TP_ADD_TCS(tp)
 {
 
 	ATF_TP_ADD_TC(tp, mprotect_exec_test);
 
 	return (atf_no_error());
 }