diff --git a/sorting/bubble_sort_2.c b/sorting/bubble_sort_2.c
index c26a0ca8..205de9e0 100644
--- a/sorting/bubble_sort_2.c
+++ b/sorting/bubble_sort_2.c
@@ -1,12 +1,12 @@
 #include <stdio.h>
 #include <stdlib.h>
 #define MAX 20
-#define TRUE 1
-#define FALSE 0
+
+#include <stdbool.h>
 
 int main()
 {
-    int i, array_sort[MAX] = {0}, is_sorted = FALSE, change_place;
+    int i, array_sort[MAX] = {0}, is_sorted = false, change_place;
 
     /* For example
     Insertion random values in array to test
@@ -21,7 +21,7 @@ int main()
 
     while (is_sorted)
     {
-        is_sorted = FALSE;
+        is_sorted = false;
 
         for (i = 0; i < MAX - 1; i++)
         {
@@ -30,7 +30,7 @@ int main()
                 change_place = array_sort[i];
                 array_sort[i] = array_sort[i + 1];
                 array_sort[i + 1] = change_place;
-                is_sorted = TRUE;
+                is_sorted = true;
             }
         }
     }