diff --git a/contracts/vaults/modules/VaultEthStaking.sol b/contracts/vaults/modules/VaultEthStaking.sol
index 41968612..e593dfa9 100644
--- a/contracts/vaults/modules/VaultEthStaking.sol
+++ b/contracts/vaults/modules/VaultEthStaking.sol
@@ -129,7 +129,7 @@ abstract contract VaultEthStaking is
    * @dev Internal function for calculating Vault withdrawal credentials
    * @return The credentials used for the validators withdrawals
    */
-  function _withdrawalCredentials() internal view virtual returns (bytes memory) {
+  function _withdrawalCredentials() private view returns (bytes memory) {
     return abi.encodePacked(bytes1(0x01), bytes11(0x0), address(this));
   }