1 files changed, 2 insertions, 2 deletions
diff --git a/ball.h b/ball.h
index db3ee12..2ff0221 100644
--- a/ball.h
+++ b/ball.h
@@ -13,8 +13,8 @@ typedef struct Ball_t {
 	GLubyte r, g, b, a;		/* red, green, blue, alpha components; 1 byte ea. */
 } Ball_t;
 
-void GLPong_BallInit();
-void GLPong_BallDeinit();
+void GLPong_BallInit(void);
+void GLPong_BallDeinit(void);
 void GLPong_BallAdd(Ball_t ** balls);
 void GLPong_BallDelete(Ball_t * from, Ball_t * ball);
 void GLPong_BallDeleteAll(Ball_t * list);