diff --git a/libs/backends/jack/jack_audiobackend.cc b/libs/backends/jack/jack_audiobackend.cc
index 5dc8f23785..65df9a93fc 100644
--- a/libs/backends/jack/jack_audiobackend.cc
+++ b/libs/backends/jack/jack_audiobackend.cc
@@ -919,7 +919,12 @@ JACKAudioBackend::process_thread ()
         /* JACK doesn't do this for us when we use the wait API
          */
 
+#ifdef COMPILER_MINGW
+	_main_thread = GetCurrentThread();
+#else
 	_main_thread = pthread_self ();
+#endif
+
 
         AudioEngine::thread_init_callback (this);