diff --git a/core/mac/src/include/dph_global.h b/core/mac/src/include/dph_global.h
index f7ef591d46..14a819bfe6 100644
--- a/core/mac/src/include/dph_global.h
+++ b/core/mac/src/include/dph_global.h
@@ -102,7 +102,6 @@ typedef struct sDphHashNode {
 	uint8_t added:1;
 	uint8_t shortPreambleEnabled:1;
 	uint8_t shortSlotTimeEnabled:1;
-	uint8_t stopTx:1;
 	/* set if both ap and sta are wme capable */
 	uint8_t wmeEnabled:1;
 	/* set if both ap and sta are 11e capable */