diff -up ./src/ClanBomber.cpp.tv ./src/ClanBomber.cpp
diff -up ./src/Credits.h.tv ./src/Credits.h
--- ./src/Credits.h.tv	2017-09-26 10:39:19.794165114 +0200
+++ ./src/Credits.h	2017-09-26 10:39:27.801313997 +0200
@@ -47,7 +47,7 @@ protected:
 	int   speed;
 	bool  stopped;
  private:
-	static const float yoffset_start = 50;
+	static const constexpr float yoffset_start = 50;
 	static const int normal_speed = 40;
 	static const int text_height = 40;