diff --git a/srcpkgs/libarchive/patches/patch-libarchive_archive_openssl_hmac_private_h.patch b/srcpkgs/libarchive/patches/patch-libarchive_archive_openssl_hmac_private_h.patch
new file mode 100644
index 00000000000..362c08ecc44
--- /dev/null
+++ b/srcpkgs/libarchive/patches/patch-libarchive_archive_openssl_hmac_private_h.patch
@@ -0,0 +1,15 @@
+$OpenBSD: patch-libarchive_archive_openssl_hmac_private_h,v 1.3 2018/02/18 14:57:47 sthen Exp $
+
+Index: libarchive/archive_openssl_hmac_private.h
+--- libarchive/archive_openssl_hmac_private.h.orig
++++ libarchive/archive_openssl_hmac_private.h
+@@ -28,7 +28,8 @@
+ #include <openssl/hmac.h>
+ #include <openssl/opensslv.h>
+ 
+-#if OPENSSL_VERSION_NUMBER < 0x10100000L || defined(LIBRESSL_VERSION_NUMBER)
++#if OPENSSL_VERSION_NUMBER < 0x10100000L || \
++    (defined(LIBRESSL_VERSION_NUMBER) && LIBRESSL_VERSION_NUMBER < 0x2070000fL)
+ #include <stdlib.h> /* malloc, free */
+ #include <string.h> /* memset */
+ static inline HMAC_CTX *HMAC_CTX_new(void)