diff --git a/src/sip/siptransport.cpp b/src/sip/siptransport.cpp
index cdaa1680d10065655bde6e648bd1669b21a117f1..02992e466ef884592958f796da67be79b2a2ac95 100644
--- a/src/sip/siptransport.cpp
+++ b/src/sip/siptransport.cpp
@@ -132,7 +132,7 @@ void
 SipTransport::stateCallback(pjsip_transport_state state,
                             const pjsip_transport_state_info *info)
 {
-    connected = state == PJSIP_TP_STATE_CONNECTED;
+    connected_ = state == PJSIP_TP_STATE_CONNECTED;
 
 #if HAVE_TLS
     auto extInfo = static_cast<const pjsip_tls_state_info*>(info->ext_info);
diff --git a/src/sip/siptransport.h b/src/sip/siptransport.h
index ffecabc7dc67b136d3f704dae178309d7c35c7bb..82613320e63602c7edc9bd3c6f1127ad7489c6de 100644
--- a/src/sip/siptransport.h
+++ b/src/sip/siptransport.h
@@ -147,7 +147,7 @@ class SipTransport
         static bool isAlive(const std::shared_ptr<SipTransport>&, pjsip_transport_state state);
 
         /** Only makes sense for connection-oriented transports */
-        bool isConnected() const { return connected; } ;
+        bool isConnected() const noexcept { return connected_; }
 
     private:
         NON_COPYABLE(SipTransport);
@@ -159,7 +159,7 @@ class SipTransport
         std::map<uintptr_t, SipTransportStateCallback> stateListeners_;
         std::mutex stateListenersMutex_;
 
-        bool connected {false};
+        bool connected_ {false};
         TlsInfos tlsInfos_;
 };