diff --git a/contracts/FleekAccessControl.sol b/contracts/FleekAccessControl.sol
index 49e711f..8858a61 100644
--- a/contracts/FleekAccessControl.sol
+++ b/contracts/FleekAccessControl.sol
@@ -160,10 +160,18 @@ abstract contract FleekAccessControl {
         }
     }
 
+    /**
+     * @dev Clears all token roles and not garants an owner role.
+     * Should be used when burns the token.
+     */
     function _clearAllTokenRoles(uint256 tokenId) internal {
         _tokenRolesVersion[tokenId].increment();
     }
 
+    /**
+     * @dev Clears all token roles and garants an owner role.
+     * Should be used when transfers the token.
+     */
     function _clearAllTokenRoles(uint256 tokenId, address newOwner) internal {
         _clearAllTokenRoles(tokenId);
         _grantTokenRole(tokenId, Roles.Owner, newOwner);