diff --git a/radio/src/thirdparty/libopenui/src/mainwindow.h b/radio/src/thirdparty/libopenui/src/mainwindow.h
index 8a3a5f710..fc47bdbc3 100644
--- a/radio/src/thirdparty/libopenui/src/mainwindow.h
+++ b/radio/src/thirdparty/libopenui/src/mainwindow.h
@@ -48,6 +48,13 @@ class MainWindow: public Window
       return _instance;
     }
 
+#if defined(TESTS)
+    static void create()
+    {
+      _instance = new MainWindow();
+    }
+#endif
+
 #if defined(DEBUG_WINDOWS)
     std::string getName() const override
     {