diff --git a/examples/ng_networking/udp.c b/examples/ng_networking/udp.c
index 13862f998b..22a5335337 100644
--- a/examples/ng_networking/udp.c
+++ b/examples/ng_networking/udp.c
@@ -19,6 +19,7 @@
  */
 
 #include <stdio.h>
+#include <inttypes.h>
 
 #include "kernel.h"
 #include "net/ng_netbase.h"