1 files changed, 1 insertions, 0 deletions

diff --git a/demos.c b/demos.c
index 5e7a8dec..43b38b07 100644
--- a/demos.c
+++ b/demos.c
@@ -1,3 +1,4 @@
+#include <stdlib.h>
 #include "stc/cstring.h"
 #include "stc/cvector.h"
 #include "stc/clist.h"