Fixed the parameter documentation
diff --git a/include/SDL_video.h b/include/SDL_video.h
index 73bc660..b6eb255 100644
--- a/include/SDL_video.h
+++ b/include/SDL_video.h
@@ -1524,7 +1524,7 @@ extern DECLSPEC int SDLCALL SDL_SetWindowHitTest(SDL_Window * window,
* Request a window to demand attention from the user.
*
* \param window the window to be flashed
- * \param the flash operation
+ * \param operation the flash operation
* \returns 0 on success or a negative error code on failure; call
* SDL_GetError() for more information.
*/