diff --git a/sys/include/net/csma_sender.h b/sys/include/net/csma_sender.h
index 803292fe3c..71a172eaea 100644
--- a/sys/include/net/csma_sender.h
+++ b/sys/include/net/csma_sender.h
@@ -49,8 +49,8 @@ extern "C" {
 /**
  * @brief Default Maximal CSMA/CA Backoff Exponent
  */
-#ifndef CSMA_SENDER_MAX_BE_DEFAULT
-#define CSMA_SENDER_MAX_BE_DEFAULT          (5U)
+#ifndef CONFIG_CSMA_SENDER_MAX_BE_DEFAULT
+#define CONFIG_CSMA_SENDER_MAX_BE_DEFAULT          (5U)
 #endif
 
 /**
diff --git a/sys/net/link_layer/csma_sender/csma_sender.c b/sys/net/link_layer/csma_sender/csma_sender.c
index 81c95a15b8..6c9e30cf30 100644
--- a/sys/net/link_layer/csma_sender/csma_sender.c
+++ b/sys/net/link_layer/csma_sender/csma_sender.c
@@ -39,7 +39,7 @@
 
 const csma_sender_conf_t CSMA_SENDER_CONF_DEFAULT = {
     CONFIG_CSMA_SENDER_MIN_BE_DEFAULT,
-    CSMA_SENDER_MAX_BE_DEFAULT,
+    CONFIG_CSMA_SENDER_MAX_BE_DEFAULT,
     CSMA_SENDER_MAX_BACKOFFS_DEFAULT,
     CSMA_SENDER_BACKOFF_PERIOD_UNIT
 };