diff --git a/contracts/MemberSystem/impl/MemAggregator.sol b/contracts/DODOMemberSystem/impl/MemAggregator.sol
similarity index 100%
rename from contracts/MemberSystem/impl/MemAggregator.sol
rename to contracts/DODOMemberSystem/impl/MemAggregator.sol
diff --git a/contracts/MemberSystem/impl/MemPermission.sol b/contracts/DODOMemberSystem/impl/MemPermission.sol
similarity index 100%
rename from contracts/MemberSystem/impl/MemPermission.sol
rename to contracts/DODOMemberSystem/impl/MemPermission.sol
diff --git a/contracts/MemberSystem/impl/MemSourceHold.sol b/contracts/DODOMemberSystem/impl/MemSourceHold.sol
similarity index 100%
rename from contracts/MemberSystem/impl/MemSourceHold.sol
rename to contracts/DODOMemberSystem/impl/MemSourceHold.sol
diff --git a/contracts/MemberSystem/impl/MemSourceStake.sol b/contracts/DODOMemberSystem/impl/MemSourceStake.sol
similarity index 100%
rename from contracts/MemberSystem/impl/MemSourceStake.sol
rename to contracts/DODOMemberSystem/impl/MemSourceStake.sol