diff --git a/du3/program.c b/du3/program.c
index 01ad0b7..ce805d3 100644
--- a/du3/program.c
+++ b/du3/program.c
@@ -1,5 +1,5 @@
 #include <stdio.h>
-#include <stdlib>
+#include <stdlib.h>
 #define VELKOST_POLA 52
 #define SIZE 52