diff --git a/webrtc/modules/audio_conference_mixer/source/audio_conference_mixer_impl.cc b/webrtc/modules/audio_conference_mixer/source/audio_conference_mixer_impl.cc
index 1fdd9dc229..fb5203746f 100644
--- a/webrtc/modules/audio_conference_mixer/source/audio_conference_mixer_impl.cc
+++ b/webrtc/modules/audio_conference_mixer/source/audio_conference_mixer_impl.cc
@@ -350,8 +350,8 @@ WebRtc_Word32 AudioConferenceMixerImpl::Process()
         if(mixedAudio->samples_per_channel_ == 0)
         {
             // Nothing was mixed, set the audio samples to silence.
-            memset(mixedAudio->data_, 0, _sampleSize);
             mixedAudio->samples_per_channel_ = _sampleSize;
+            mixedAudio->Mute();
         }
         else
         {