diff --git a/src/dirlist.c b/src/dirlist.c
index 24eabff..65c97d5 100644
--- a/src/dirlist.c
+++ b/src/dirlist.c
@@ -26,6 +26,7 @@
 #include "global.h"
 
 #include <string.h>
+#include <stdlib.h>
 
 
 /* public variables */