diff --git a/libavutil/sha.c b/libavutil/sha.c
index 3107deeffea65758f7860e24f654df28aec6313f..38221a71642de2369c545053b2381e4cb400e900 100644
--- a/libavutil/sha.c
+++ b/libavutil/sha.c
@@ -25,6 +25,7 @@
 #include "avutil.h"
 #include "bswap.h"
 #include "sha.h"
+#include "intreadwrite.h"
 
 /** hash context */
 typedef struct AVSHA {
@@ -319,7 +320,7 @@ void av_sha_final(AVSHA* ctx, uint8_t *digest)
         av_sha_update(ctx, "", 1);
     av_sha_update(ctx, (uint8_t *)&finalcount, 8); /* Should cause a transform() */
     for (i = 0; i < ctx->digest_len; i++)
-        ((uint32_t*)digest)[i] = be2me_32(ctx->state[i]);
+        AV_WN32(digest + i*4, be2me_32(ctx->state[i]));
 }
 
 #if LIBAVUTIL_VERSION_MAJOR < 51