diff --git a/ex7/stack.hpp b/ex7/stack.hpp
index 0aa9f7a..f49d067 100644
--- a/ex7/stack.hpp
+++ b/ex7/stack.hpp
@@ -1,6 +1,7 @@
-#ifndef _GLIBCXX_IOSTREAM
+#ifndef _STACK_HPP_
+#define _STACK_HPP_
 #include <iostream>
-#endif
+
 
 template <class T>
 class Stack
@@ -60,3 +61,4 @@ protected:
     _v = p;
   }
 };
+#endif
\ No newline at end of file