--- a/resource/csdk/stack/include/octypes.h
+++ b/resource/csdk/stack/include/octypes.h
@@ -35,9 +35,9 @@ extern "C" {
 //Don't want to expose to application layer that lower level stack is using CoAP.
 
 /// Authority + URI string to prefix well known queries
-#define OC_WELL_KNOWN_QUERY                  "224.0.1.187:5683/oc/core"
+#define OC_WELL_KNOWN_QUERY                  "/oc/core"
 #define OC_MULTICAST_DISCOVERY_URI           "/oc/core"
-#define OC_EXPLICIT_DEVICE_DISCOVERY_URI     "224.0.1.187:5683/oc/core/d?rt=core.led"
+#define OC_EXPLICIT_DEVICE_DISCOVERY_URI     "/oc/core/d?rt=core.led"
 /// Multicast address and port string to prefix multicast queries
 #define OC_MULTICAST_PREFIX                  "224.0.1.187:5683"
 /// IP Multicast address to use for multicast requests