diff --git a/block.hpp b/block.hpp
index 0a63dd3..24ba61c 100644
--- a/block.hpp
+++ b/block.hpp
@@ -1,5 +1,5 @@
-#ifndef PTF_BALL_HPP
-#define PTF_BALL_HPP
+#ifndef PTF_BLOCK_HPP
+#define PTF_BLOCK_HPP
 
 #include <SFML/Graphics.hpp>
 #include <iostream>