diff --git a/bdchain/api/common.proto b/bdchain/api/common.proto
index ce67c91..37f708b 100644
--- a/bdchain/api/common.proto
+++ b/bdchain/api/common.proto
@@ -17,4 +17,5 @@ enum TransactionType {
   MESSAGE = 1; // 消息
   CONTRACT_CREATION = 2; // 合约创建
   CONTRACT_INVOCATION = 3; // 合约调用
+  CONTRACT_STATUS = 4; // 合约状态
 }