diff --git a/stack.c b/stack.c
index 17e97c4d7ed49ad2954b435b5224ebc1835954e8..18cf00175e48be989d7bd2bb919dcb304ae120d4 100644
--- a/stack.c
+++ b/stack.c
@@ -1,6 +1,4 @@
 #include <stdio.h>
-#include <stdbool.h>
-#include <stdbool.h>
 #include "stack.h"
 
 void stack_destroy(stack *s){