diff --git a/sha.h b/sha.h
index 23c9f6c1..f2c3196e 100644
--- a/sha.h
+++ b/sha.h
@@ -11,12 +11,6 @@
 #include "config.h"
 #include "iterhash.h"
 
-#if (CRYPTOPP_BOOL_X86)
-#  define SHA_X86_ALIGN16  true
-#else
-#  define SHA_X86_ALIGN16  false
-#endif
-
 NAMESPACE_BEGIN(CryptoPP)
 
 /// \brief SHA-1 message digest
@@ -138,7 +132,7 @@ protected:
 /// \brief SHA-512 message digest
 /// \sa <a href="http://www.weidai.com/scan-mirror/md.html#SHA-512">SHA-512</a>
 /// \since SHA2 since Crypto++ 4.0, Power8 SHA since Crypto++ 6.1
-class CRYPTOPP_DLL SHA512 : public IteratedHashWithStaticTransform<word64, BigEndian, 128, 64, SHA512, 64, SHA_X86_ALIGN16>
+class CRYPTOPP_DLL SHA512 : public IteratedHashWithStaticTransform<word64, BigEndian, 128, 64, SHA512, 64, true>
 {
 public:
 	/// \brief Initialize state array
@@ -173,7 +167,7 @@ public:
 /// \brief SHA-384 message digest
 /// \sa <a href="http://www.weidai.com/scan-mirror/md.html#SHA-384">SHA-384</a>
 /// \since SHA2 since Crypto++ 4.0, Power8 SHA since Crypto++ 6.1
-class CRYPTOPP_DLL SHA384 : public IteratedHashWithStaticTransform<word64, BigEndian, 128, 64, SHA384, 48, SHA_X86_ALIGN16>
+class CRYPTOPP_DLL SHA384 : public IteratedHashWithStaticTransform<word64, BigEndian, 128, 64, SHA384, 48, true>
 {
 public:
 	/// \brief Initialize state array