diff --git a/platform/mbxxx/contiki-conf.h b/platform/mbxxx/contiki-conf.h
index e5aa9f3c7..90895a86b 100644
--- a/platform/mbxxx/contiki-conf.h
+++ b/platform/mbxxx/contiki-conf.h
@@ -129,11 +129,16 @@
 #define UIP_CONF_MAX_LISTENPORTS                8
 #define UIP_CONF_UDP_CONNS                      4
 
-#include "net/sicslowpan.h"
-#define SICSLOWPAN_CONF_COMPRESSION             SICSLOWPAN_CONF_COMPRESSION_HC06
+#define SICSLOWPAN_CONF_COMPRESSION             SICSLOWPAN_COMPRESSION_HC06
+#ifndef SICSLOWPAN_CONF_FRAG
 #define SICSLOWPAN_CONF_FRAG                    1
+#endif /* SICSLOWPAN_CONF_FRAG */
+#ifndef SICSLOWPAN_CONF_MAX_ADDR_CONTEXTS
 #define SICSLOWPAN_CONF_MAX_ADDR_CONTEXTS       2
+#endif /* SICSLOWPAN_CONF_MAX_ADDR_CONTEXTS */
+#ifndef SICSLOWPAN_CONF_MAXAGE
 #define SICSLOWPAN_CONF_MAXAGE                  2
+#endif /* SICSLOWPAN_CONF_MAXAGE */
 
 #else /* WITH_UIP6 */