diff --git a/examples/thttpd/content/hello/hello.c b/examples/thttpd/content/hello/hello.c
index bb76af9b676..9028d8fb90a 100644
--- a/examples/thttpd/content/hello/hello.c
+++ b/examples/thttpd/content/hello/hello.c
@@ -42,6 +42,7 @@
 #include <sys/types.h>
 
 #include <stdio.h>
+#include <stdlib.h>
 
 /****************************************************************************
  * Public Functions