--- ext/openssl/ossl.h.orig	2016-11-12 07:36:50.000000000 +0900
+++ ext/openssl/ossl.h	2019-02-27 23:20:30.000000000 +0900
@@ -55,7 +55,7 @@
 #endif
 #include <errno.h>
 #include <openssl/err.h>
-#include <openssl/asn1_mac.h>
+#include <openssl/asn1.h>
 #include <openssl/x509v3.h>
 #include <openssl/ssl.h>
 #include <openssl/pkcs12.h>