diff --git a/vcl/inc/qt5/QtInstanceTreeView.hxx b/vcl/inc/qt5/QtInstanceTreeView.hxx
index 110bc09c8bd2..a57734ed9079 100644
--- a/vcl/inc/qt5/QtInstanceTreeView.hxx
+++ b/vcl/inc/qt5/QtInstanceTreeView.hxx
@@ -42,7 +42,7 @@ public:
     virtual int get_selected_index() const override;
     virtual void select(int nPos) override;
     virtual void unselect(int nPos) override;
-    virtual void remove(int pos) override;
+    virtual void remove(int nPos) override;
     virtual OUString get_text(int nRow, int nCol = -1) const override;
     virtual void set_text(int nRow, const OUString& rText, int nCol = -1) override;
     virtual void set_sensitive(int row, bool bSensitive, int col = -1) override;
diff --git a/vcl/qt5/QtInstanceTreeView.cxx b/vcl/qt5/QtInstanceTreeView.cxx
index 34bf6dee0c13..613987c44a80 100644
--- a/vcl/qt5/QtInstanceTreeView.cxx
+++ b/vcl/qt5/QtInstanceTreeView.cxx
@@ -142,7 +142,12 @@ void QtInstanceTreeView::unselect(int nPos)
     });
 }
 
-void QtInstanceTreeView::remove(int) { assert(false && "Not implemented yet"); }
+void QtInstanceTreeView::remove(int nPos)
+{
+    SolarMutexGuard g;
+
+    GetQtInstance().RunInMainThread([&] { m_pModel->removeRow(nPos); });
+}
 
 OUString QtInstanceTreeView::get_text(int nRow, int nCol) const
 {