diff --git a/demo/ff/include/stringlistmodel.hpp b/demo/ff/include/stringlistmodel.hpp
index 69b2e45..ccd022b 100644
--- a/demo/ff/include/stringlistmodel.hpp
+++ b/demo/ff/include/stringlistmodel.hpp
@@ -6,11 +6,11 @@
  * /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ /
  * \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/
  *
- * Copyright (c) 2004 - 2008 Olof Naessén and Per Larsson
+ * Copyright (c) 2004 - 2008 Olof Naess�n and Per Larsson
  *
  *
  * Per Larsson a.k.a finalman
- * Olof Naessén a.k.a jansem/yakslem
+ * Olof Naess�n a.k.a jansem/yakslem
  *
  * Visit: http://guichan.sourceforge.net
  *
@@ -55,11 +55,16 @@ class StringListModel : public gcn::ListModel
     int getNumberOfElements() override { return mStrings.size(); }
     std::string getElementAt(int i) override { return mStrings.at(i); }
 
-    void add(std::string str)
+    void add(std::string str) override
     {
         mStrings.push_back(str);
     }
 
+    void clear() override 
+    {
+        mStrings.clear();
+    }
+
 private:
     std::vector<std::string> mStrings;
 };