diff --git a/src/pc/peer_connection.cpp b/src/pc/peer_connection.cpp
index bb9eb49..eda133f 100644
--- a/src/pc/peer_connection.cpp
+++ b/src/pc/peer_connection.cpp
@@ -459,3 +459,3 @@ int PeerConnection::SendJoinRequestLocked(
     LOG_INFO("[{}] sends join transmission [{}] request", user_id_,
-             transmission_id);
+             transmission_id.substr(0, transmission_id.find('@')));
   }
@@ -481,3 +481,3 @@ int PeerConnection::Join(const std::string& transmission_id) {
     LOG_INFO("Queue join transmission [{}] until signal login completes",
-             transmission_id);
+             transmission_id.substr(0, transmission_id.find('@')));
     return 0;
@@ -498,3 +498,3 @@ int PeerConnection::Leave(const std::string& transmission_id) {
       LOG_INFO("Cancel queued join transmission [{}]",
-               *pending_join_transmission_id_);
+               pending_join_transmission_id_->substr(0, pending_join_transmission_id_->find('@')));
       pending_join_transmission_id_.reset();
@@ -508,3 +508,3 @@ int PeerConnection::Leave(const std::string& transmission_id) {
         LOG_INFO("[{}] leave transmission [{}] notification queued",
-                 user_id_, transmission_id);
+                 user_id_, transmission_id.substr(0, transmission_id.find('@')));
       }