diff --git a/sys/include/net/coap.h b/sys/include/net/coap.h
index b25033eed3..290cfb6bc9 100644
--- a/sys/include/net/coap.h
+++ b/sys/include/net/coap.h
@@ -201,8 +201,8 @@ extern "C" {
 #endif
 
 /** @brief   Maximum number of retransmissions for a confirmable request */
-#ifndef COAP_MAX_RETRANSMIT
-#define COAP_MAX_RETRANSMIT     (4)
+#ifndef CONFIG_COAP_MAX_RETRANSMIT
+#define CONFIG_COAP_MAX_RETRANSMIT     (4)
 #endif
 /** @} */
 /** @} */
diff --git a/sys/net/application_layer/gcoap/gcoap.c b/sys/net/application_layer/gcoap/gcoap.c
index bc8bbcae24..9511b56995 100644
--- a/sys/net/application_layer/gcoap/gcoap.c
+++ b/sys/net/application_layer/gcoap/gcoap.c
@@ -247,7 +247,7 @@ static void _on_resp_timeout(void *arg) {
 #ifdef CONFIG_GCOAP_NO_RETRANS_BACKOFF
         unsigned i        = 0;
 #else
-        unsigned i        = COAP_MAX_RETRANSMIT - memo->send_limit;
+        unsigned i        = CONFIG_COAP_MAX_RETRANSMIT - memo->send_limit;
 #endif
         uint32_t timeout  = ((uint32_t)CONFIG_COAP_ACK_TIMEOUT << i) * US_PER_SEC;
 #if CONFIG_COAP_RANDOM_FACTOR_1000 > 1000
@@ -772,7 +772,7 @@ size_t gcoap_req_send(const uint8_t *buf, size_t len,
                 }
             }
             if (memo->msg.data.pdu_buf) {
-                memo->send_limit  = COAP_MAX_RETRANSMIT;
+                memo->send_limit  = CONFIG_COAP_MAX_RETRANSMIT;
                 timeout           = (uint32_t)CONFIG_COAP_ACK_TIMEOUT * US_PER_SEC;
 #if CONFIG_COAP_RANDOM_FACTOR_1000 > 1000
                 timeout = random_uint32_range(timeout, TIMEOUT_RANGE_END * US_PER_SEC);
diff --git a/sys/net/application_layer/nanocoap/sock.c b/sys/net/application_layer/nanocoap/sock.c
index bfd4fcc4c9..c090cb57b5 100644
--- a/sys/net/application_layer/nanocoap/sock.c
+++ b/sys/net/application_layer/nanocoap/sock.c
@@ -49,7 +49,7 @@ ssize_t nanocoap_request(coap_pkt_t *pkt, sock_udp_ep_t *local, sock_udp_ep_t *r
     /* TODO: timeout random between between ACK_TIMEOUT and (ACK_TIMEOUT *
      * ACK_RANDOM_FACTOR) */
     uint32_t timeout = CONFIG_COAP_ACK_TIMEOUT * US_PER_SEC;
-    unsigned tries_left = COAP_MAX_RETRANSMIT + 1;  /* add 1 for initial transmit */
+    unsigned tries_left = CONFIG_COAP_MAX_RETRANSMIT + 1;  /* add 1 for initial transmit */
     while (tries_left) {
 
         res = sock_udp_send(&sock, buf, pdu_len, NULL);
diff --git a/sys/suit/transport/coap.c b/sys/suit/transport/coap.c
index 18fbcddc14..93bb4bee73 100644
--- a/sys/suit/transport/coap.c
+++ b/sys/suit/transport/coap.c
@@ -140,7 +140,7 @@ static ssize_t _nanocoap_request(sock_udp_t *sock, coap_pkt_t *pkt, size_t len)
     uint32_t deadline = deadline_from_interval(timeout);
 
     /* add 1 for initial transmit */
-    unsigned tries_left = COAP_MAX_RETRANSMIT + 1;
+    unsigned tries_left = CONFIG_COAP_MAX_RETRANSMIT + 1;
 
     while (tries_left) {
         if (res == -EAGAIN) {