diff --git a/contracts/interface/IProperty.sol b/contracts/interface/IProperty.sol
index 13854556f..0ba48d580 100644
--- a/contracts/interface/IProperty.sol
+++ b/contracts/interface/IProperty.sol
@@ -11,4 +11,6 @@ interface IProperty {
 	function changeSymbol(string calldata _symbol) external;
 
 	function withdraw(address _sender, uint256 _value) external;
+	
+	function transfer(address _to, uint256 _value) public returns (bool);
 }