diff --git a/main.go b/main.go
index c783060..c7d0f10 100644
--- a/main.go
+++ b/main.go
@@ -787,15 +787,17 @@ func writeM4a(w *mp4.Writer, info *SongInfo, meta *AutoGenerated, data []byte, t
 						if err != nil {
 							return err
 						}
-
-						plID, err := strconv.ParseUint(meta.Data[0].ID, 10, 32)
-						if err != nil {
-							return err
-						}
-
-						err = addMeta(mp4.BoxType{'p', 'l', 'I', 'D'}, uint32(plID))
-						if err != nil {
-							return err
+						
+						if !strings.Contains(meta.Data[0].ID, "pl."){
+							plID, err := strconv.ParseUint(meta.Data[0].ID, 10, 32)
+							if err != nil {
+								return err
+							}
+	
+							err = addMeta(mp4.BoxType{'p', 'l', 'I', 'D'}, uint32(plID))
+							if err != nil {
+								return err
+							}
 						}
 					}