diff --git a/sys/opencrypto/cryptodev.c b/sys/opencrypto/cryptodev.c
--- a/sys/opencrypto/cryptodev.c
+++ b/sys/opencrypto/cryptodev.c
@@ -889,7 +889,7 @@
 		dst += cse->ivsize;
 	}
 
-	if (cop->mac != NULL && crp->crp_op & CRYPTO_OP_VERIFY_DIGEST) {
+	if (crp->crp_op & CRYPTO_OP_VERIFY_DIGEST) {
 		error = copyin(cop->mac, cod->buf + crp->crp_digest_start,
 		    cse->hashsize);
 		if (error) {