diff --git a/include/crypto/hash.h b/include/crypto/hash.h
index 6f6b9de..ed63b90 100644
--- a/include/crypto/hash.h
+++ b/include/crypto/hash.h
@@ -184,7 +184,7 @@ struct shash_desc {
  * Worst case is hmac(sha3-224-s390).  Its context is a nested 'shash_desc'
  * containing a 'struct s390_sha_ctx'.
  */
-#define HASH_MAX_DESCSIZE	(sizeof(struct shash_desc) + 360)
+#define HASH_MAX_DESCSIZE	(sizeof(struct shash_desc) + 361)
 #define MAX_SYNC_HASH_REQSIZE	(sizeof(struct ahash_request) + \
 				 HASH_MAX_DESCSIZE)