diff --git a/stream/rtp/rtp.go b/stream/rtp/rtp.go
index 37d6bbc0..47f4a91b 100644
--- a/stream/rtp/rtp.go
+++ b/stream/rtp/rtp.go
@@ -34,7 +34,7 @@ package rtp
 
 const (
 	rtpVer         = 2
-	headSize       = 3 * 4                     // Header suze of an rtp packet.
+	headSize       = 3 * 4                     // Header size of an rtp packet.
 	defPayloadSize = sendLen                   // Default payload size for the rtp packet.
 	defPktSize     = headSize + defPayloadSize // Default packet size is header size + payload size.
 )