diff --git a/src/core/mac/mac.cpp b/src/core/mac/mac.cpp
index 19b93a93c..44a5d2b52 100644
--- a/src/core/mac/mac.cpp
+++ b/src/core/mac/mac.cpp
@@ -856,7 +856,7 @@ exit:
 
     if (error != OT_ERROR_NONE)
     {
-#if PENTHREAD_CONFIG_LEGACY_TRANSMIT_DONE
+#if OPENTHREAD_CONFIG_LEGACY_TRANSMIT_DONE
         TransmitDoneTask(mTxFrame, false, OT_ERROR_ABORT);
 #else
         TransmitDoneTask(mTxFrame, NULL, OT_ERROR_ABORT);