diff --git a/core/net/uip6.c b/core/net/uip6.c
index 9800c7d97..e3b497ba6 100644
--- a/core/net/uip6.c
+++ b/core/net/uip6.c
@@ -83,7 +83,7 @@
 /* For Debug, logging, statistics                                            */
 /*---------------------------------------------------------------------------*/
 
-#define DEBUG 1
+#define DEBUG 0
 #if DEBUG
 #include <stdio.h>
 #define PRINTF(...) printf(__VA_ARGS__)