3 files changed, 7 insertions, 8 deletions
diff --git a/src/gui/debate.cc b/src/gui/debate.cc
index 9cb19438..022f8454 100644
--- a/src/gui/debate.cc
+++ b/src/gui/debate.cc
@@ -35,8 +35,8 @@
 
 namespace OpenAxiom {
 
-  Debate::Debate(QTabWidget* tab)
-        : super(tab), conv(this) {
+   Debate::Debate(MainWindow* win, QTabWidget* tab)
+         : QScrollArea(tab), main_win(win), conv(this) {
       setWidget(&conv);
       setViewportMargins(0, 0, 0, 0);
       viewport()->setAutoFillBackground(true);
diff --git a/src/gui/debate.h b/src/gui/debate.h
index 60749816..b2339d76 100644
--- a/src/gui/debate.h
+++ b/src/gui/debate.h
@@ -43,22 +43,21 @@
 
 namespace OpenAxiom {
    
-   class Debate : public managed_by<QScrollArea, QTabWidget> {
+   class Debate : public QScrollArea {
       Q_OBJECT;
    public:
-     explicit Debate(QTabWidget*);
+      explicit Debate(MainWindow*, QTabWidget*);
       ~Debate();
 
       Conversation* exchanges() { return &conv; }
-      MainWindow* main_window() const {
-         return qobject_cast<MainWindow*>(parent()->parent());
-      }
+      MainWindow* main_window() const { return main_win; }
       Server* server() const { return main_window()->server(); }
 
    protected:
       void resizeEvent(QResizeEvent*);
 
    private:
+      MainWindow* const main_win;
       Conversation conv;
    };
 }
diff --git a/src/gui/main-window.cc b/src/gui/main-window.cc
index b3063638..b63e4b84 100644
--- a/src/gui/main-window.cc
+++ b/src/gui/main-window.cc
@@ -40,7 +40,7 @@
 namespace OpenAxiom {
    MainWindow::MainWindow(Command& cmd) : srv(cmd), tabs(this) {
       setCentralWidget(&tabs);
-      Debate* debate = new Debate(&tabs);
+      Debate* debate = new Debate(this, &tabs);
       tabs.addTab(debate, "Main Frame");
       QMenu* file = menuBar()->addMenu(tr("&File"));
       QAction* action = new QAction(tr("Quit"), this);