#define GLUT_ACTION_ON_WINDOW_CLOSE 0x01F9
#define GLUT_WINDOW_BORDER_WIDTH 0x01FA
-#define GLUT_WINDOW_HEADER_HEIGHT 0x01FB
+#define GLUT_WINDOW_BORDER_HEIGHT 0x01FB
+#define GLUT_WINDOW_HEADER_HEIGHT 0x01FB /* Docs say it should always have been GLUT_WINDOW_BORDER_HEIGHT, keep this for backward compatibility */
#define GLUT_VERSION 0x01FC