diff --git a/src/GAudioOutput.cc b/src/GAudioOutput.cc
index 78a2dd0de7afd5676426c3b52110037f98433d8f..891d8c7adc447791f0996e49f181ebad0e41c95b 100644
--- a/src/GAudioOutput.cc
+++ b/src/GAudioOutput.cc
@@ -84,6 +84,7 @@ GAudioOutput::~GAudioOutput()
 void GAudioOutput::mute(bool mute)
 {
     // XXX handle muting
+    Q_UNUSED(mute);
 }
 
 bool GAudioOutput::isMuted()
diff --git a/src/audio/QGCAudioWorker.cpp b/src/audio/QGCAudioWorker.cpp
index eac54d57166174d3ae8f8371a1af7f82260edcb9..f03ae6f08877112926e9267f2a9a544237f417e6 100644
--- a/src/audio/QGCAudioWorker.cpp
+++ b/src/audio/QGCAudioWorker.cpp
@@ -89,7 +89,6 @@ void QGCAudioWorker::say(QString text, int severity)
     {
         // TODO Add severity filter
         Q_UNUSED(severity);
-        bool res = false;
 
         if (!emergency)
         {