diff --git a/HistoryViewController.h b/HistoryViewController.h
new file mode 100644
index 0000000..3710b03
--- /dev/null
+++ b/HistoryViewController.h
@@ -0,0 +1,21 @@
+//
+//  HistoryViewController.h
+//  Ring
+//
+//  Created by Alexandre Lision on 2015-01-28.
+//
+//
+
+#import <Cocoa/Cocoa.h>
+#import "QNSTreeController.h"
+
+
+@interface HistoryViewController : NSViewController <NSOutlineViewDelegate> {
+
+    NSOutlineView *historyView;
+}
+
+@property NSTreeController *treeController;
+@property (assign) IBOutlet NSOutlineView *historyView;
+
+@end