diff --git a/internal/library/id3v2genre.go b/internal/library/id3v2genre.go
index f8eacaf3..7dbb15ce 100644
--- a/internal/library/id3v2genre.go
+++ b/internal/library/id3v2genre.go
@@ -141,10 +141,10 @@ func findGenreFrame(body []byte, major byte) ([]string, error) {
 // the reverse) yields a plausible-looking wrong offset rather than an obvious
 // error, which is exactly how frame-walking bugs go unnoticed.
 func frameSize(b []byte, major byte) int {
-	switch {
-	case major == 2:
+	switch major {
+	case 2:
 		return int(b[0])<<16 | int(b[1])<<8 | int(b[2])
-	case major == 3:
+	case 3:
 		n := binary.BigEndian.Uint32(b)
 		if n > maxID3TagSize {
 			return -1