diff --git a/webrtc/modules/utility/source/coder.cc b/webrtc/modules/utility/source/coder.cc
index 31d528d..a610daa 100644
--- a/webrtc/modules/utility/source/coder.cc
+++ b/webrtc/modules/utility/source/coder.cc
@@ -92,7 +92,8 @@
 {
     // Fake a timestamp in case audio doesn't contain a correct timestamp.
     // Make a local copy of the audio frame since audio is const
-    AudioFrame audioFrame = audio;
+    AudioFrame audioFrame;
+    audioFrame.CopyFrom(audio);
     audioFrame.timestamp_ = _encodeTimestamp;
     _encodeTimestamp += audioFrame.samples_per_channel_;