diff --git a/core/contiki-default-conf.h b/core/contiki-default-conf.h
index 8fb380f87..cd002414e 100644
--- a/core/contiki-default-conf.h
+++ b/core/contiki-default-conf.h
@@ -148,13 +148,6 @@
 #endif /* NBR_TABLE_FIND_REMOVABLE */
 #endif /* UIP_CONF_IPV6_RPL */
 
-/* RPL_CONF_MOP specifies the RPL mode of operation that will be
- * advertised by the RPL root. Possible values: RPL_MOP_NO_DOWNWARD_ROUTES,
- * RPL_MOP_NON_STORING, RPL_MOP_STORING_NO_MULTICAST, RPL_MOP_STORING_MULTICAST */
-#ifndef RPL_CONF_MOP
-#define RPL_CONF_MOP RPL_MOP_STORING_NO_MULTICAST
-#endif /* RPL_CONF_MOP */
-
 /* UIP_CONF_MAX_ROUTES specifies the maximum number of routes that each
    node will be able to handle. */
 #ifndef UIP_CONF_MAX_ROUTES