diff -r dbde25a5bc53 -r c03c338a7dcf ui/gtk/container.h
--- a/ui/gtk/container.h	Tue Jan 24 18:46:47 2017 +0100
+++ b/ui/gtk/container.h	Fri Nov 10 17:17:14 2017 +0100
@@ -1,7 +1,7 @@
 /*
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
  *
- * Copyright 2014 Olaf Wintermann. All rights reserved.
+ * Copyright 2017 Olaf Wintermann. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
@@ -30,6 +30,7 @@
 #define	CONTAINER_H
 
 #include "../ui/toolkit.h"
+#include "../ui/container.h"
 #include <string.h>
 
 #ifdef	__cplusplus
@@ -114,7 +115,7 @@
 
 UiObject* ui_add_document_tab(UiDocumentView *view);
 void ui_tab_set_document(UiContext *ctx, void *document);
-void ui_tab_detach_document(UiContext *ctx, void *document);
+void ui_tab_detach_document(UiContext *ctx);
 
 #ifdef	__cplusplus
 }