diff --git a/os/net/mac/csma/csma-output.c b/os/net/mac/csma/csma-output.c
index 46862fa6a..d3493ebe5 100644
--- a/os/net/mac/csma/csma-output.c
+++ b/os/net/mac/csma/csma-output.c
@@ -85,7 +85,7 @@
 
 /* macMaxFrameRetries: Maximum number of re-transmissions attampts. Range 0--7 */
 #ifdef CSMA_CONF_MAX_FRAME_RETRIES
-#define CSMA_MAX_FRAME_RETRIES CSMA_MAX_FRAME_RETRIES
+#define CSMA_MAX_FRAME_RETRIES CSMA_CONF_MAX_FRAME_RETRIES
 #else
 #define CSMA_MAX_FRAME_RETRIES 7
 #endif