diff --git a/crypto/authenc.c b/crypto/authenc.c
index 5793b64c81a86449c7b09f56ae918f1ffcb73b9f..2e16ce0089cb1f3af32f7ac74ac2d6592230af1f 100644
--- a/crypto/authenc.c
+++ b/crypto/authenc.c
@@ -436,11 +436,7 @@ static struct crypto_instance *crypto_authenc_alloc(struct rtattr **tb)
 	inst->alg.cra_type = &crypto_aead_type;
 
 	inst->alg.cra_aead.ivsize = enc->cra_ablkcipher.ivsize;
-	inst->alg.cra_aead.maxauthsize = auth->cra_type == &crypto_hash_type ?
-					 auth->cra_hash.digestsize :
-					 auth->cra_type ?
-					 __crypto_shash_alg(auth)->digestsize :
-					 auth->cra_digest.dia_digestsize;
+	inst->alg.cra_aead.maxauthsize = __crypto_shash_alg(auth)->digestsize;
 
 	inst->alg.cra_ctxsize = sizeof(struct crypto_authenc_ctx);