diff --git a/lib/libc/gen/getpagesize.c b/lib/libc/gen/getpagesize.c
index 5fe9a965385f..23d2c6ea5eda 100644
--- a/lib/libc/gen/getpagesize.c
+++ b/lib/libc/gen/getpagesize.c
@@ -1,71 +1,51 @@
 /*-
  * SPDX-License-Identifier: BSD-3-Clause
  *
  * Copyright (c) 1989, 1993
  *	The Regents of the University of California.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  * 3. Neither the name of the University nor the names of its contributors
  *    may be used to endorse or promote products derived from this software
  *    without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  */
 
 #include <sys/param.h>
-#include <sys/sysctl.h>
-
-#include <errno.h>
-#include <link.h>
-#include <unistd.h>
+#include <sys/auxv.h>
 
 #include "libc_private.h"
 
 /*
- * This is unlikely to change over the running time of any
- * program, so we cache the result to save some syscalls.
- *
  * NB: This function may be called from malloc(3) at initialization
  * NB: so must not result in a malloc(3) related call!
  */
 
 int
 getpagesize(void)
 {
-	int mib[2];
-	static int value;
-	size_t size;
-	int error;
-
-	if (value != 0)
-		return (value);
-
-	error = _elf_aux_info(AT_PAGESZ, &value, sizeof(value));
-	if (error == 0 && value != 0)
-		return (value);
+	int value;
 
-	mib[0] = CTL_HW;
-	mib[1] = HW_PAGESIZE;
-	size = sizeof value;
-	if (sysctl(mib, nitems(mib), &value, &size, NULL, 0) == -1)
-		return (PAGE_SIZE);
+	if (_elf_aux_info(AT_PAGESZ, &value, sizeof(value)) != 0)
+		value = PAGE_SIZE;
 
 	return (value);
 }