diff --git a/sys/compat/linuxkpi/common/include/linux/pagemap.h b/sys/compat/linuxkpi/common/include/linux/pagemap.h
index da1dc6a9e81f..f3c8c04aa13e 100644
--- a/sys/compat/linuxkpi/common/include/linux/pagemap.h
+++ b/sys/compat/linuxkpi/common/include/linux/pagemap.h
@@ -1,50 +1,51 @@
 /*-
  * Copyright (c) 2020 The FreeBSD Foundation
  *
  * This software was developed by Emmanuel Vadot under sponsorship
  * from the FreeBSD Foundation.
  *
  * 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.
  *
  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
  *
  * $FreeBSD$
  */
 
 #ifndef _LINUXKPI_LINUX_PAGEMAP_H_
 #define _LINUXKPI_LINUX_PAGEMAP_H_
 
 #include <linux/mm.h>
+#include <linux/highmem.h>
 
 static inline void
 release_pages(struct page **pages, int nr)
 {
 	int i;
 
 	for (i = 0; i < nr; i++)
 		put_page(pages[i]);
 }
 
 static inline void
 mapping_clear_unevictable(vm_object_t mapping)
 {
 }
 
 #endif