diff --git a/security/xmlsec1/files/patch-src_openssl_signatures.c b/security/xmlsec1/files/patch-src_openssl_signatures.c
new file mode 100644
index 000000000000..6b79e95fd58f
--- /dev/null
+++ b/security/xmlsec1/files/patch-src_openssl_signatures.c
@@ -0,0 +1,10 @@
+--- src/openssl/signatures.c.orig	2016-04-20 16:26:22 UTC
++++ src/openssl/signatures.c
+@@ -10,6 +10,7 @@
+ 
+ #include <string.h>
+ 
++#include <openssl/ecdsa.h> // ECDSA_SIG
+ #include <openssl/evp.h>
+ #include <openssl/rand.h>
+ #include <openssl/sha.h>