diff --git a/include/stdlib.h b/include/stdlib.h
index 9c175d4..dedfd52 100644
--- a/include/stdlib.h
+++ b/include/stdlib.h
@@ -7,5 +7,6 @@
 #define __STDLIB_H_
 
 #include <malloc.h>
+#include <rand.h>
 
 #endif /* __STDLIB_H_ */