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-rw-r--r--macosx/HBAudio.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/macosx/HBAudio.h b/macosx/HBAudio.h
index a54c4ac24..14b191646 100644
--- a/macosx/HBAudio.h
+++ b/macosx/HBAudio.h
@@ -18,7 +18,7 @@ extern NSString *keyAudioMixdown;
extern NSString *keyAudioSamplerate;
extern NSString *keyAudioBitrate;
-@interface HBAudio : NSObject <NSCoding>
+@interface HBAudio : NSObject <NSCoding, NSCopying>
@property (nonatomic, retain) NSDictionary *track;
@property (nonatomic, retain) NSDictionary *codec;