diff --git a/contracts/libraries/helpers/Errors.sol b/contracts/libraries/helpers/Errors.sol
index ee71efaa..6e13143a 100644
--- a/contracts/libraries/helpers/Errors.sol
+++ b/contracts/libraries/helpers/Errors.sol
@@ -45,6 +45,7 @@ library Errors {
   string public constant INVALID_EQUAL_ASSETS_TO_SWAP = '56';
   string public constant NO_MORE_RESERVES_ALLOWED = '59';
   string public constant INVALID_FLASH_LOAN_EXECUTOR_RETURN = '60';
+  string public constant INCONSISTENT_FLASHLOAN_PARAMS = '69';
 
   // require error messages - aToken - DebtTokens
   string public constant CALLER_MUST_BE_LENDING_POOL = '28'; // 'The caller of this function must be a lending pool'