1 files changed, 3 insertions, 1 deletions

diff --git a/src/lib/libcrypto/md5/md5.h b/src/lib/libcrypto/md5/md5.h
index 52cb753e6a..a252e02115 100644
--- a/src/lib/libcrypto/md5/md5.h
+++ b/src/lib/libcrypto/md5/md5.h
@@ -59,6 +59,8 @@
 #ifndef HEADER_MD5_H
 #define HEADER_MD5_H
 
+#include <openssl/e_os2.h>
+
 #ifdef  __cplusplus
 extern "C" {
 #endif
@@ -76,7 +78,7 @@ extern "C" {
 
 #if defined(OPENSSL_SYS_WIN16) || defined(__LP32__)
 #define MD5_LONG unsigned long
-#elif defined(OENSSL_SYS_CRAY) || defined(__ILP64__)
+#elif defined(OPENSSL_SYS_CRAY) || defined(__ILP64__)
 #define MD5_LONG unsigned long
 #define MD5_LONG_LOG2 3
 /*