diff --git a/MacPass/MPDatabaseController.h b/MacPass/MPDatabaseController.h
index 21bf3e83..6a2d1a48 100644
--- a/MacPass/MPDatabaseController.h
+++ b/MacPass/MPDatabaseController.h
@@ -7,6 +7,7 @@
 //
 
 #import <Foundation/Foundation.h>
+#import "MPDatabaseVersion.h"
 
 /*
  Notification is posted, when a database is loaded
diff --git a/MacPass/MPDatabaseDocument.h b/MacPass/MPDatabaseDocument.h
index 718f2ead..ba17c268 100644
--- a/MacPass/MPDatabaseDocument.h
+++ b/MacPass/MPDatabaseDocument.h
@@ -7,6 +7,7 @@
 //
 
 #import <Foundation/Foundation.h>
+#import "MPDatabaseVersion.h"
 
 APPKIT_EXTERN NSString *const MPDidLoadDatabaseNotification;
 APPKIT_EXTERN NSString *const MPDatabaseDocumentDocumentKey;
diff --git a/MacPass/MPDatabaseVersion.h b/MacPass/MPDatabaseVersion.h
new file mode 100644
index 00000000..d4d087b5
--- /dev/null
+++ b/MacPass/MPDatabaseVersion.h
@@ -0,0 +1,17 @@
+//
+//  MPDatabaseVersion.h
+//  MacPass
+//
+//  Created by Nathaniel Madura on 18/04/13.
+//  Copyright (c) 2013 HicknHack Software GmbH. All rights reserved.
+//
+
+#ifndef MacPass_MPDatabaseVersion_h
+#define MacPass_MPDatabaseVersion_h
+
+typedef enum {
+  MPDatabaseVersion3,
+  MPDatabaseVersion4
+} MPDatabaseVersion;
+
+#endif