diff --git a/rtmp/packet.go b/rtmp/packet.go
index 8b5d9a83..bf16b3cf 100644
--- a/rtmp/packet.go
+++ b/rtmp/packet.go
@@ -95,7 +95,7 @@ type packet struct {
 	body            []byte
 }
 
-// readFrom reads an packet from the RTMP connection.
+// readFrom reads a packet from the RTMP connection.
 func (pkt *packet) readFrom(s *Session) error {
 	var hbuf [fullHeaderSize]byte
 	header := hbuf[:]