diff --git a/flac.go b/flac.go
index 22e85c5..3221be2 100644
--- a/flac.go
+++ b/flac.go
@@ -15,13 +15,13 @@ type blockType byte
 
 // FLAC block types.
 const (
-	streamInfoBlock    blockType = 0
-	paddingBlock                 = 1
-	applicationBlock             = 2
-	seektableBlock               = 3
-	vorbisCommentBlock           = 4 // Supported
-	cueSheetBlock                = 5
-	pictureBlock                 = 6 // Supported
+	// Stream Info Block           0
+	// Padding Block               1
+	// Application Block           2
+	// Seektable Block             3
+	// Cue Sheet Block             5
+	vorbisCommentBlock blockType = 4
+	pictureBlock       blockType = 6
 )
 
 // ReadFLACTags reads FLAC metadata from the io.ReadSeeker, returning the resulting
diff --git a/ogg.go b/ogg.go
index b10535b..81f257d 100644
--- a/ogg.go
+++ b/ogg.go
@@ -12,7 +12,7 @@ import (
 
 const (
 	idType      int = 1
-	commentType     = 3
+	commentType int = 3
 )
 
 // ReadOGGTags reads OGG metadata from the io.ReadSeeker, returning the resulting