diff --git a/crypto/sha256_generic.c b/crypto/sha256_generic.c
index 5433667..32c5e5e 100644
--- a/crypto/sha256_generic.c
+++ b/crypto/sha256_generic.c
@@ -210,10 +210,9 @@
 
 	/* clear any sensitive info... */
 	a = b = c = d = e = f = g = h = t1 = t2 = 0;
-	memset(W, 0, 64 * sizeof(u32));
+	memzero_explicit(W, 64 * sizeof(u32));
 }
 
-
 static int sha224_init(struct shash_desc *desc)
 {
 	struct sha256_state *sctx = shash_desc_ctx(desc);
@@ -316,7 +315,7 @@
 	sha256_final(desc, D);
 
 	memcpy(hash, D, SHA224_DIGEST_SIZE);
-	memset(D, 0, SHA256_DIGEST_SIZE);
+	memzero_explicit(D, SHA256_DIGEST_SIZE);
 
 	return 0;
 }