diff --git a/src/GeneralPrefsVC.h b/src/GeneralPrefsVC.h
index 0954432..92b1651 100644
--- a/src/GeneralPrefsVC.h
+++ b/src/GeneralPrefsVC.h
@@ -19,7 +19,8 @@
 
 
 #import <Cocoa/Cocoa.h>
+#import "LrcModelsSProtocol.h"
 
-@interface GeneralPrefsVC : NSViewController
+@interface GeneralPrefsVC : NSViewController <LrcModelsSProtocol>
 
-@end
\ No newline at end of file
+@end