diff --git a/contracts/DODOPrivatePool/impl/DPPOracle/WooOracleAdapter.sol b/contracts/DODOPrivatePool/impl/DPPOracle/WooOracleAdapter.sol
index 14eb47f..a949777 100644
--- a/contracts/DODOPrivatePool/impl/DPPOracle/WooOracleAdapter.sol
+++ b/contracts/DODOPrivatePool/impl/DPPOracle/WooOracleAdapter.sol
@@ -18,7 +18,7 @@ interface IWooracle {
 }
 
 contract WooOracleAdapter is IOracle {
-    IWooracle oracle;
+    IWooracle public oracle;
 
     constructor(address oracleAddress) public {
         oracle = IWooracle(oracleAddress);