diff --git a/src/interface/x.h b/src/interface/x.h
index 96a184a..3d84798 100644
--- a/src/interface/x.h
+++ b/src/interface/x.h
@@ -85,7 +85,7 @@ DLLAPI int CreateConnection(PeerPtr* peer_ptr, const char* transmission_id,
 DLLAPI int JoinConnection(PeerPtr* peer_ptr, const char* transmission_id,
                           const char* password);
 
-DLLAPI int LeaveConnection(PeerPtr* peer_ptr);
+DLLAPI int LeaveConnection(PeerPtr* peer_ptr, const char* transmission_id);
 
 DLLAPI int SendData(PeerPtr* peer_ptr, DATA_TYPE data_type, const char* data,
                     size_t size);
diff --git a/src/pc/peer_connection.cpp b/src/pc/peer_connection.cpp
index 45cd45a..b455b49 100644
--- a/src/pc/peer_connection.cpp
+++ b/src/pc/peer_connection.cpp
@@ -193,6 +193,8 @@ int PeerConnection::Init(PeerConnectionParams params,
 
   nv12_data_ = new char[1280 * 720 * 3 / 2];
 
+  LOG_INFO("[{}] Init finish", user_id);
+
   // if (0 != CreateVideoCodec(hardware_acceleration_)) {
   //   LOG_ERROR("Create video codec failed");
   //   return -1;
@@ -342,7 +344,7 @@ int PeerConnection::Join(const std::string &transmission_id,
   return ret;
 }
 
-int PeerConnection::Leave() {
+int PeerConnection::Leave(const std::string &transmission_id) {
   if (SignalStatus::SignalConnected != GetSignalStatus()) {
     LOG_ERROR("Signal not connected");
     return -1;
@@ -350,11 +352,11 @@ int PeerConnection::Leave() {
 
   json message = {{"type", "leave_transmission"},
                   {"user_id", user_id_},
-                  {"transmission_id", transmission_id_}};
+                  {"transmission_id", transmission_id}};
   if (ws_transport_) {
     ws_transport_->Send(message.dump());
     LOG_INFO("[{}] sends leave transmission [{}] notification ", user_id_,
-             transmission_id_);
+             transmission_id);
   }
 
   ice_ready_ = false;
@@ -576,7 +578,7 @@ int PeerConnection::RequestTransmissionMemberList(
     return -1;
   }
 
-  LOG_INFO("Request member list");
+  LOG_INFO("[{}] Request member list", user_id_);
 
   json message = {{"type", "query_user_id_list"},
                   {"transmission_id", transmission_id_},
diff --git a/src/pc/peer_connection.h b/src/pc/peer_connection.h
index b654625..9309a97 100644
--- a/src/pc/peer_connection.h
+++ b/src/pc/peer_connection.h
@@ -61,7 +61,7 @@ class PeerConnection {
   int Join(const std::string &transmission_id,
            const std::string &password = "");
 
-  int Leave();
+  int Leave(const std::string &transmission_id);
 
   int Destroy();
 
diff --git a/src/rtc/x_inner.cpp b/src/rtc/x_inner.cpp
index 6b38abc..ee0ecb6 100644
--- a/src/rtc/x_inner.cpp
+++ b/src/rtc/x_inner.cpp
@@ -81,13 +81,13 @@ int JoinConnection(PeerPtr *peer_ptr, const char *transmission_id,
   return ret;
 }
 
-int LeaveConnection(PeerPtr *peer_ptr) {
+int LeaveConnection(PeerPtr *peer_ptr, const char *transmission_id) {
   if (!peer_ptr) {
     LOG_ERROR("peer_ptr not created");
     return -1;
   }
 
-  peer_ptr->peer_connection->Leave();
+  peer_ptr->peer_connection->Leave(transmission_id);
   LOG_INFO("LeaveConnection");
   return 0;
 }