diff --git a/pkg/magic/producer.go b/pkg/magic/producer.go
index fb48270e..8ed3e57a 100644
--- a/pkg/magic/producer.go
+++ b/pkg/magic/producer.go
@@ -34,12 +34,12 @@ func Open(r io.Reader) (core.Producer, error) {
 	case bytes.HasPrefix(b, []byte(flv.Signature)):
 		return flv.Open(rd)
 
-	case bytes.HasPrefix(b, []byte{0xFF, 0xF1}):
-		return aac.Open(rd)
-
 	case bytes.HasPrefix(b, []byte("--")):
 		return multipart.Open(rd)
 
+	case b[0] == 0xFF && b[1]&0xF7 == 0xF1:
+		return aac.Open(rd)
+
 	case b[0] == mpegts.SyncByte:
 		return mpegts.Open(rd)
 	}