diff -r dbde25a5bc53 -r c03c338a7dcf ui/gtk/container.c
--- a/ui/gtk/container.c	Tue Jan 24 18:46:47 2017 +0100
+++ b/ui/gtk/container.c	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:
@@ -481,8 +481,8 @@
     //ctx->parent->document = document;
 }
 
-void ui_tab_detach_document(UiContext *ctx, void *document) {
-    uic_context_detach_document(ctx->parent, document);
+void ui_tab_detach_document(UiContext *ctx) {
+    uic_context_detach_document(ctx->parent);
 }