diff --git a/Source/cm_sha2.c b/Source/cm_sha2.c
index 12c39ed..24de2b2 100644
--- a/Source/cm_sha2.c
+++ b/Source/cm_sha2.c
@@ -740,7 +740,8 @@ void SHA1_Final(sha_byte digest[], SHA_CTX* context) {
        /* Convert FROM host byte order */
        REVERSE64(context->s1.bitcount,context->s1.bitcount);
 #endif
-       *(sha_word64*)&context->s1.buffer[56] = context->s1.bitcount;
+       MEMCPY_BCOPY(&context->s1.buffer[56], &context->s1.bitcount,
+                    sizeof(sha_word64));
 
        /* Final transform: */
        SHA1_Internal_Transform(context, (sha_word32*)context->s1.buffer);
@@ -1067,7 +1068,8 @@ void SHA256_Internal_Last(SHA_CTX* context) {
                *context->s256.buffer = 0x80;
        }
        /* Set the bit count: */
-       *(sha_word64*)&context->s256.buffer[56] = context->s256.bitcount;
+       MEMCPY_BCOPY(&context->s256.buffer[56], &context->s256.bitcount,
+                    sizeof(sha_word64));
 
        /* Final transform: */
        SHA256_Internal_Transform(context, (sha_word32*)context->s256.buffer);
@@ -1475,8 +1477,10 @@ void SHA512_Internal_Last(SHA_CTX* context) {
                *context->s512.buffer = 0x80;
        }
        /* Store the length of input data (in bits): */
-       *(sha_word64*)&context->s512.buffer[112] = context->s512.bitcount[1];
-       *(sha_word64*)&context->s512.buffer[120] = context->s512.bitcount[0];
+       MEMCPY_BCOPY(&context->s512.buffer[112], &context->s512.bitcount[1],
+                    sizeof(sha_word64));
+       MEMCPY_BCOPY(&context->s512.buffer[120], &context->s512.bitcount[0],
+                    sizeof(sha_word64));
 
        /* Final transform: */
        SHA512_Internal_Transform(context, (sha_word64*)context->s512.buffer);