Added missing header for file IO
diff --git a/include/SDL_gamecontroller.h b/include/SDL_gamecontroller.h
index 3d49125..891f356 100644
--- a/include/SDL_gamecontroller.h
+++ b/include/SDL_gamecontroller.h
@@ -30,6 +30,7 @@
#include "SDL_stdinc.h"
#include "SDL_error.h"
+#include "SDL_rwops.h"
#include "SDL_joystick.h"
#include "begin_code.h"