1 files changed, 3 insertions, 1 deletions

diff --git a/src/lib/libcrypto/cms/cms_dd.c b/src/lib/libcrypto/cms/cms_dd.c
index ac2fdbb30f..f5295942bf 100644
--- a/src/lib/libcrypto/cms/cms_dd.c
+++ b/src/lib/libcrypto/cms/cms_dd.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: cms_dd.c,v 1.12 2019/08/11 10:38:27 jsing Exp $ */
+/* $OpenBSD: cms_dd.c,v 1.13 2019/08/11 10:50:23 jsing Exp $ */
 /*
  * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
  * project.
@@ -52,6 +52,8 @@
  * ====================================================================
  */
 
+#include <string.h>
+
 #include "cryptlib.h"
 #include <openssl/asn1t.h>
 #include <openssl/pem.h>