diff --git a/modules/audio_mixer/frame_combiner.cc b/modules/audio_mixer/frame_combiner.cc
index 4759c3a40f..cff2282e33 100644
--- a/modules/audio_mixer/frame_combiner.cc
+++ b/modules/audio_mixer/frame_combiner.cc
@@ -56,6 +56,7 @@ void SetAudioFrameFields(const std::vector<AudioFrame*>& mix_list,
   } else if (mix_list.size() == 1) {
     audio_frame_for_mixing->timestamp_ = mix_list[0]->timestamp_;
     audio_frame_for_mixing->elapsed_time_ms_ = mix_list[0]->elapsed_time_ms_;
+    audio_frame_for_mixing->ntp_time_ms_ = mix_list[0]->ntp_time_ms_;
   }
 }