diff --git a/trunk/src/app/srs_app_rtc_queue.cpp b/trunk/src/app/srs_app_rtc_queue.cpp
index ff820ab8b..15999d510 100644
--- a/trunk/src/app/srs_app_rtc_queue.cpp
+++ b/trunk/src/app/srs_app_rtc_queue.cpp
@@ -248,7 +248,7 @@ void SrsRtpNackForReceiver::get_nack_seqs(vector<uint16_t>& seqs)
         int alive_time = now - nack_info.generate_time_;
         if (alive_time > opts_.max_alive_time || nack_info.req_nack_count_ > opts_.max_count) {
             rtp_->notify_drop_seq(seq);
-            queue_.erase(iter++);
+            iter = queue_.erase(iter);
             continue;
         }
 
diff --git a/trunk/src/app/srs_app_rtc_server.cpp b/trunk/src/app/srs_app_rtc_server.cpp
index 3457a2698..faa9c78c9 100644
--- a/trunk/src/app/srs_app_rtc_server.cpp
+++ b/trunk/src/app/srs_app_rtc_server.cpp
@@ -448,7 +448,7 @@ void SrsRtcServer::check_and_clean_timeout_session()
         session->switch_to_context();
 
         srs_trace("rtc session=%s, STUN timeout", session->id().c_str());
-        map_username_session.erase(iter++);
+        iter = map_username_session.erase(iter);
         map_id_session.erase(session->peer_id());
 
         if (handler) {