diff --git a/src/engine/client/video.cpp b/src/engine/client/video.cpp
index c24714518..909cc217b 100644
--- a/src/engine/client/video.cpp
+++ b/src/engine/client/video.cpp
@@ -685,7 +685,8 @@ void CVideo::finish_frames(OutputStream* pStream)
 		if (!ret_recv)
 		{
 			/* rescale output packet timestamp values from codec to stream timebase */
-			av_packet_rescale_ts(&Packet, pStream->enc->time_base, pStream->st->time_base);
+			if(pStream->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
+				av_packet_rescale_ts(&Packet, pStream->st->codec->time_base, pStream->st->time_base);
 			Packet.stream_index = pStream->st->index;
 
 			if (int ret = av_interleaved_write_frame(m_pFormatContext, &Packet))