diff --git a/src/GAudioOutput.cc b/src/GAudioOutput.cc
index dc847cee7c0a5464fe5a75f346d78953fcfab182..ca2a4aa952a3ca6b1c29084af442b7ca5aeb1def 100644
--- a/src/GAudioOutput.cc
+++ b/src/GAudioOutput.cc
@@ -77,10 +77,8 @@ GAudioOutput::~GAudioOutput()
     while (thread->isRunning()) {
         QGC::SLEEP::usleep(100);
     }
-    worker->deleteLater();
-    thread->deleteLater();
-    worker = NULL;
-    thread = NULL;
+    delete worker;
+    delete thread;
 }
 
 
diff --git a/src/audio/QGCAudioWorker.cpp b/src/audio/QGCAudioWorker.cpp
index e0a202f37787705caea1183879d52efc70267cc1..5c4c4579848c283da2e33f60b8ee55d077f3509f 100644
--- a/src/audio/QGCAudioWorker.cpp
+++ b/src/audio/QGCAudioWorker.cpp
@@ -90,6 +90,7 @@ QGCAudioWorker::~QGCAudioWorker()
     pVoice = NULL;
     ::CoUninitialize();
 #endif
+    delete emergencyTimer;
 }
 
 void QGCAudioWorker::say(QString text, int severity)