diff --git a/examples/ustream-example.c b/examples/ustream-example.c
index 88c7381..3db56c4 100644
--- a/examples/ustream-example.c
+++ b/examples/ustream-example.c
@@ -5,6 +5,7 @@
 #include <getopt.h>
 #include <stdlib.h>
 #include <string.h>
+#include <unistd.h>
 
 #include "ustream.h"
 #include "uloop.h"