diff --git a/src/apps/mdns/mdns.c b/src/apps/mdns/mdns.c
index d9eb8c36..4386c208 100644
--- a/src/apps/mdns/mdns.c
+++ b/src/apps/mdns/mdns.c
@@ -126,7 +126,6 @@ static mdns_name_result_cb_t mdns_name_result_cb;
                              MDNS_RESPONSE_TC_DELAY_MIN) + MDNS_RESPONSE_TC_DELAY_MIN)
 
 /** Probing & announcing defines */
-#define MDNS_PROBE_DELAY_MS       250
 #define MDNS_PROBE_COUNT          3
 #ifdef LWIP_RAND
 /* first probe timeout SHOULD be random 0-250 ms*/
diff --git a/src/include/lwip/apps/mdns_opts.h b/src/include/lwip/apps/mdns_opts.h
index 4221f02c..1eee3e38 100644
--- a/src/include/lwip/apps/mdns_opts.h
+++ b/src/include/lwip/apps/mdns_opts.h
@@ -60,6 +60,14 @@
 #define MDNS_MAX_SERVICES               1
 #endif
 
+/** The minimum delay between probes in ms. RFC 6762 require 250ms.
+ * In noisy WiFi environment, adding 30-50ms to this value help a lot for
+ * a successful Apple BCT tests.
+ */
+#ifndef MDNS_PROBE_DELAY_MS
+#define MDNS_PROBE_DELAY_MS           250
+#endif
+
 /** The maximum number of received packets stored in chained list of known
  * answers for pending truncated questions. This value define the size of
  * the MDNS_PKTS mempool.