diff --git a/src/session.cc b/src/session.cc
index c564bdf..75ad5bc 100644
--- a/src/session.cc
+++ b/src/session.cc
@@ -43,12 +43,18 @@ void session::update_all(int elapsed_time)
         }
 
         switch (se->_status) {
+            
         case session::WAITING:
             logger::debug() << "session is now invalid";
             se->_status = session::INVALID;
             se->_ttl    = se->_pr->deadtime();
             break;
             
+        case session::RENEWING:
+            logger::debug() << "session is became invalid";
+            se->_pr->remove_session(se);
+            break;
+            
         case session::VALID:            
             if (se->_touched == true) {
                 logger::debug() << "session is renewing";