diff --git a/os/hal/include/hal_crypto.h b/os/hal/include/hal_crypto.h
index f29d314b3..87202403a 100644
--- a/os/hal/include/hal_crypto.h
+++ b/os/hal/include/hal_crypto.h
@@ -98,7 +98,9 @@ typedef enum {
   CRY_ERR_INV_ALGO = 1,                     /**< Invalid cypher/mode.       */
   CRY_ERR_INV_KEY_SIZE = 2,                 /**< Invalid key size.          */
   CRY_ERR_INV_KEY_TYPE = 3,                 /**< Invalid key type.          */
-  CRY_ERR_INV_KEY_ID = 4                    /**< Invalid key identifier.    */
+  CRY_ERR_INV_KEY_ID = 4,                   /**< Invalid key identifier.    */
+  CRY_ERR_ENCRYP = 5,                       /**< Encryption error.          */
+  CRY_ERR_DECRYP = 6                        /**< Decryption error.          */
 } cryerror_t;
 
 /**