diff --git a/sys/conf/files.arm64 b/sys/conf/files.arm64
index 456a19a29a..c813ee773c 100644
--- a/sys/conf/files.arm64
+++ b/sys/conf/files.arm64
@@ -114,27 +114,27 @@ armv8_crypto_wrap.o				optional armv8crypto	\
 	clean		"armv8_crypto_wrap.o"
 aesv8-armx.o					optional armv8crypto	\
 	dependency	"$S/crypto/openssl/aarch64/aesv8-armx.S"	\
-	compile-with	"${CC} -c ${CFLAGS:C/^-O2$/-O3/:N-nostdinc:N-mgeneral-regs-only} -I$S/crypto/armv8/ ${WERROR} ${NO_WCAST_QUAL} ${PROF} -march=armv8-a+crypto ${.IMPSRC}" \
+	compile-with	"${CC} -c ${CFLAGS:C/^-O2$/-O3/:N-nostdinc:N-mgeneral-regs-only} -I$S/crypto/armv8/ -I$S/crypto/openssl ${WERROR} ${NO_WCAST_QUAL} ${PROF} -march=armv8-a+crypto ${.IMPSRC}" \
 	no-implicit-rule						\
 	clean		"aesv8-armx.o"
 ghashv8-armx.o					optional armv8crypto	\
 	dependency	"$S/crypto/openssl/aarch64/ghashv8-armx.S"	\
-	compile-with	"${CC} -c ${CFLAGS:C/^-O2$/-O3/:N-nostdinc:N-mgeneral-regs-only} -I$S/crypto/armv8/ ${WERROR} ${NO_WCAST_QUAL} ${PROF} -march=armv8-a+crypto ${.IMPSRC}" \
+	compile-with	"${CC} -c ${CFLAGS:C/^-O2$/-O3/:N-nostdinc:N-mgeneral-regs-only} -I$S/crypto/armv8/ -I$S/crypto/openssl ${WERROR} ${NO_WCAST_QUAL} ${PROF} -march=armv8-a+crypto ${.IMPSRC}" \
 	no-implicit-rule						\
 	clean		"ghashv8-armx.o"
 
 crypto/des/des_enc.c				optional netsmb
 crypto/openssl/ossl_aarch64.c			optional ossl
 crypto/openssl/aarch64/chacha-armv8.S		optional ossl		\
-	compile-with	"${CC} -c ${CFLAGS:N-mgeneral-regs-only} ${WERROR} ${PROF} ${.IMPSRC}"
+	compile-with	"${CC} -c ${CFLAGS:N-mgeneral-regs-only} -I$S/crypto/openssl ${WERROR} ${PROF} ${.IMPSRC}"
 crypto/openssl/aarch64/poly1305-armv8.S		optional ossl		\
-	compile-with	"${CC} -c ${CFLAGS:N-mgeneral-regs-only} ${WERROR} ${PROF} ${.IMPSRC}"
+	compile-with	"${CC} -c ${CFLAGS:N-mgeneral-regs-only} -I$S/crypto/openssl ${WERROR} ${PROF} ${.IMPSRC}"
 crypto/openssl/aarch64/sha1-armv8.S		optional ossl		\
-	compile-with	"${CC} -c ${CFLAGS:N-mgeneral-regs-only} ${WERROR} ${PROF} ${.IMPSRC}"
+	compile-with	"${CC} -c ${CFLAGS:N-mgeneral-regs-only} -I$S/crypto/openssl ${WERROR} ${PROF} ${.IMPSRC}"
 crypto/openssl/aarch64/sha256-armv8.S		optional ossl		\
-	compile-with	"${CC} -c ${CFLAGS:N-mgeneral-regs-only} ${WERROR} ${PROF} ${.IMPSRC}"
+	compile-with	"${CC} -c ${CFLAGS:N-mgeneral-regs-only} -I$S/crypto/openssl ${WERROR} ${PROF} ${.IMPSRC}"
 crypto/openssl/aarch64/sha512-armv8.S		optional ossl		\
-	compile-with	"${CC} -c ${CFLAGS:N-mgeneral-regs-only} ${WERROR} ${PROF} ${.IMPSRC}"
+	compile-with	"${CC} -c ${CFLAGS:N-mgeneral-regs-only} -I$S/crypto/openssl ${WERROR} ${PROF} ${.IMPSRC}"
 
 dev/acpica/acpi_bus_if.m			optional acpi
 dev/acpica/acpi_if.m				optional acpi
diff --git a/sys/crypto/openssl/aarch64/arm_arch.h b/sys/crypto/openssl/aarch64/arm_arch.h
deleted file mode 100644
index 8b7105571d..0000000000
--- a/sys/crypto/openssl/aarch64/arm_arch.h
+++ /dev/null
@@ -1,84 +0,0 @@
-/*
- * Copyright 2011-2018 The OpenSSL Project Authors. All Rights Reserved.
- *
- * Licensed under the OpenSSL license (the "License").  You may not use
- * this file except in compliance with the License.  You can obtain a copy
- * in the file LICENSE in the source distribution or at
- * https://www.openssl.org/source/license.html
- */
-
-#ifndef OSSL_CRYPTO_ARM_ARCH_H
-# define OSSL_CRYPTO_ARM_ARCH_H
-
-# if !defined(__ARM_ARCH__)
-#  if defined(__CC_ARM)
-#   define __ARM_ARCH__ __TARGET_ARCH_ARM
-#   if defined(__BIG_ENDIAN)
-#    define __ARMEB__
-#   else
-#    define __ARMEL__
-#   endif
-#  elif defined(__GNUC__)
-#   if   defined(__aarch64__)
-#    define __ARM_ARCH__ 8
-#    if __BYTE_ORDER__==__ORDER_BIG_ENDIAN__
-#     define __ARMEB__
-#    else
-#     define __ARMEL__
-#    endif
-  /*
-   * Why doesn't gcc define __ARM_ARCH__? Instead it defines
-   * bunch of below macros. See all_architectures[] table in
-   * gcc/config/arm/arm.c. On a side note it defines
-   * __ARMEL__/__ARMEB__ for little-/big-endian.
-   */
-#   elif defined(__ARM_ARCH)
-#    define __ARM_ARCH__ __ARM_ARCH
-#   elif defined(__ARM_ARCH_8A__)
-#    define __ARM_ARCH__ 8
-#   elif defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__)     || \
-        defined(__ARM_ARCH_7R__)|| defined(__ARM_ARCH_7M__)     || \
-        defined(__ARM_ARCH_7EM__)
-#    define __ARM_ARCH__ 7
-#   elif defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__)     || \
-        defined(__ARM_ARCH_6K__)|| defined(__ARM_ARCH_6M__)     || \
-        defined(__ARM_ARCH_6Z__)|| defined(__ARM_ARCH_6ZK__)    || \
-        defined(__ARM_ARCH_6T2__)
-#    define __ARM_ARCH__ 6
-#   elif defined(__ARM_ARCH_5__) || defined(__ARM_ARCH_5T__)     || \
-        defined(__ARM_ARCH_5E__)|| defined(__ARM_ARCH_5TE__)    || \
-        defined(__ARM_ARCH_5TEJ__)
-#    define __ARM_ARCH__ 5
-#   elif defined(__ARM_ARCH_4__) || defined(__ARM_ARCH_4T__)
-#    define __ARM_ARCH__ 4
-#   else
-#    error "unsupported ARM architecture"
-#   endif
-#  endif
-# endif
-
-# if !defined(__ARM_MAX_ARCH__)
-#  define __ARM_MAX_ARCH__ __ARM_ARCH__
-# endif
-
-# if __ARM_MAX_ARCH__<__ARM_ARCH__
-#  error "__ARM_MAX_ARCH__ can't be less than __ARM_ARCH__"
-# elif __ARM_MAX_ARCH__!=__ARM_ARCH__
-#  if __ARM_ARCH__<7 && __ARM_MAX_ARCH__>=7 && defined(__ARMEB__)
-#   error "can't build universal big-endian binary"
-#  endif
-# endif
-
-# ifndef __ASSEMBLER__
-extern unsigned int OPENSSL_armcap_P;
-# endif
-
-# define ARMV7_NEON      (1<<0)
-# define ARMV7_TICK      (1<<1)
-# define ARMV8_AES       (1<<2)
-# define ARMV8_SHA1      (1<<3)
-# define ARMV8_SHA256    (1<<4)
-# define ARMV8_PMULL     (1<<5)
-# define ARMV8_SHA512    (1<<6)
-
-#endif
diff --git a/sys/crypto/openssl/ossl_aarch64.c b/sys/crypto/openssl/ossl_aarch64.c
index 4447552add..14a9572e8a 100644
--- a/sys/crypto/openssl/ossl_aarch64.c
+++ b/sys/crypto/openssl/ossl_aarch64.c
@@ -34,7 +34,7 @@
 #include <machine/md_var.h>
 
 #include <crypto/openssl/ossl.h>
-#include <crypto/openssl/aarch64/arm_arch.h>
+#include <crypto/openssl/arm_arch.h>
 
 /*
  * Feature bits defined in arm_arch.h