diff --git a/codec/mjpeg/extract.go b/codec/mjpeg/extract.go
index 96d5ba15..857b7b37 100644
--- a/codec/mjpeg/extract.go
+++ b/codec/mjpeg/extract.go
@@ -37,7 +37,7 @@ const maxRTPSize = 1500 // Max ethernet transmission unit in bytes.
 
 // Extractor is an Extractor for extracting JPEG from an RTP stream.
 type Extractor struct {
-	dst io.Writer // The destination we'll be writing extracted NALUs to.
+	dst io.Writer // The destination we'll be writing extracted JPEGs to.
 }
 
 // NewExtractor returns a new Extractor.