diff --git a/format/rtspv2/demuxer.go b/format/rtspv2/demuxer.go
index 396ca410..ce0790d1 100644
--- a/format/rtspv2/demuxer.go
+++ b/format/rtspv2/demuxer.go
@@ -22,7 +22,7 @@ func (client *RTSPClient) RTPDemuxer(payloadRAW *[]byte) ([]*av.Packet, bool) {
 	extension := (firstByte>>4)&1 == 1
 	CSRCCnt := int(firstByte & 0x0f)
 	client.sequenceNumber = int(binary.BigEndian.Uint16(content[6:8]))
-	client.timestamp = int64(binary.BigEndian.Uint32(content[8:16]))
+	client.timestamp = int64(binary.BigEndian.Uint32(content[8:12]))
 
 	if isRTCPPacket(content) {
 		client.Println("skipping RTCP packet")