diff --git a/src/audio/QGCAudioWorker.cpp b/src/audio/QGCAudioWorker.cpp
index 9815dee52f820ee8a228a8e2545d2e9f1a613a13..43e570f8dbe3cb573f090fe8abc9b7750d0e0598 100644
--- a/src/audio/QGCAudioWorker.cpp
+++ b/src/audio/QGCAudioWorker.cpp
@@ -45,7 +45,7 @@ void QGCAudioWorker::init()
     sound = new QSound("");
 
 #if defined Q_OS_LINUX && defined QGC_SPEECH_ENABLED
-    espeak_Initialize(AUDIO_OUTPUT_SYNCHRONOUS, 500, NULL, 0); // initialize for playback with 500ms buffer and no options (see speak_lib.h)
+    espeak_Initialize(AUDIO_OUTPUT_SYNCH_PLAYBACK, 500, NULL, 0); // initialize for playback with 500ms buffer and no options (see speak_lib.h)
     espeak_VOICE *espeak_voice = espeak_GetCurrentVoice();
     espeak_voice->languages = "en-uk"; // Default to British English
     espeak_voice->identifier = NULL; // no specific voice file specified