diff --git a/examples/gcoap/gcoap_cli.c b/examples/gcoap/gcoap_cli.c
index c754109f2a..d8dc5d0845 100644
--- a/examples/gcoap/gcoap_cli.c
+++ b/examples/gcoap/gcoap_cli.c
@@ -29,7 +29,8 @@
 #define ENABLE_DEBUG (0)
 #include "debug.h"
 
-static void _resp_handler(unsigned req_state, coap_pkt_t* pdu);
+static void _resp_handler(unsigned req_state, coap_pkt_t* pdu,
+                          sock_udp_ep_t *remote);
 static ssize_t _stats_handler(coap_pkt_t* pdu, uint8_t *buf, size_t len);
 
 /* CoAP resources */
@@ -48,8 +49,11 @@ static uint16_t req_count = 0;
 /*
  * Response callback.
  */
-static void _resp_handler(unsigned req_state, coap_pkt_t* pdu)
+static void _resp_handler(unsigned req_state, coap_pkt_t* pdu,
+                          sock_udp_ep_t *remote)
 {
+    (void)remote;       /* not interested in the source currently */
+
     if (req_state == GCOAP_MEMO_TIMEOUT) {
         printf("gcoap: timeout for msg ID %02u\n", coap_get_id(pdu));
         return;
diff --git a/sys/include/net/gcoap.h b/sys/include/net/gcoap.h
index 1cc757d8a0..375a57c498 100644
--- a/sys/include/net/gcoap.h
+++ b/sys/include/net/gcoap.h
@@ -413,7 +413,8 @@ typedef struct gcoap_listener {
  *
  * If request timed out, the packet header is for the request.
  */
-typedef void (*gcoap_resp_handler_t)(unsigned req_state, coap_pkt_t* pdu);
+typedef void (*gcoap_resp_handler_t)(unsigned req_state, coap_pkt_t* pdu,
+                                     sock_udp_ep_t *remote);
 
 /**
  * @brief   Memo to handle a response for a request
diff --git a/sys/net/application_layer/coap/gcoap.c b/sys/net/application_layer/coap/gcoap.c
index 86301d02a3..1284b02c4e 100644
--- a/sys/net/application_layer/coap/gcoap.c
+++ b/sys/net/application_layer/coap/gcoap.c
@@ -160,7 +160,7 @@ static void _listen(sock_udp_t *sock)
         if (memo) {
             xtimer_remove(&memo->response_timer);
             memo->state = GCOAP_MEMO_RESP;
-            memo->resp_handler(memo->state, &pdu);
+            memo->resp_handler(memo->state, &pdu, &remote);
             memo->state = GCOAP_MEMO_UNUSED;
         }
     }
@@ -380,7 +380,7 @@ static void _expire_request(gcoap_request_memo_t *memo)
         /* Pass response to handler */
         if (memo->resp_handler) {
             req.hdr = (coap_hdr_t *)&memo->hdr_buf[0];   /* for reference */
-            memo->resp_handler(memo->state, &req);
+            memo->resp_handler(memo->state, &req, NULL);
         }
         memo->state = GCOAP_MEMO_UNUSED;
     }