diff --git a/crypto/sha/sha512.c b/crypto/sha/sha512.c
index 1277a0f7a12b6d589767810add284f340d73f65f..24fc2ef03d88a5ac43e67227b4fceb07d56e214f 100644
--- a/crypto/sha/sha512.c
+++ b/crypto/sha/sha512.c
@@ -54,7 +54,8 @@ const char SHA512_version[]="SHA-512" OPENSSL_VERSION_PTEXT;
 
 #if defined(__i386) || defined(__i386__) || defined(_M_IX86) || \
     defined(__x86_64) || defined(_M_AMD64) || defined(_M_X64) || \
-    defined(__s390__) || defined(__s390x__)
+    defined(__s390__) || defined(__s390x__) || \
+    defined(SHA512_ASM)
 #define SHA512_BLOCK_CAN_MANAGE_UNALIGNED_DATA
 #endif