diff --git a/media/engine/constants.h b/media/engine/constants.h
index 0abae3d407..9a421d9875 100644
--- a/media/engine/constants.h
+++ b/media/engine/constants.h
@@ -17,8 +17,6 @@ extern const int kVideoMtu;
 extern const int kVideoRtpSendBufferSize;
 extern const int kVideoRtpRecvBufferSize;
 
-extern const char kH264CodecName[];
-
 }  // namespace cricket
 
 #endif  // MEDIA_ENGINE_CONSTANTS_H_