diff --git a/UI/MenuScreens.h b/UI/MenuScreens.h
index e73625b9e2..1d735fd2e8 100644
--- a/UI/MenuScreens.h
+++ b/UI/MenuScreens.h
@@ -94,7 +94,14 @@ public:
 class SystemScreen : public Screen
 {
 public:
-	SystemScreen();
+	void update(InputState &input);
+	void render();
+};
+
+class LanguageScreen : public Screen
+{
+public:
+	LanguageScreen();
 	void update(InputState &input);
 	void render();
 private:
@@ -107,6 +114,7 @@ public:
 	void update(InputState &input);
 	void render();
 };
+
 struct FileSelectScreenOptions {
 	const char* filter;  // Enforced extension filter. Case insensitive, extensions separated by ":".
 	bool allowChooseDirectory;