diff --git a/drivers/net/wireless/ath/ath9k/rc.c b/drivers/net/wireless/ath/ath9k/rc.c
index ed48d3d3e6b27cda030e665f7a824b1ae83c3555..78192c19fe54767bfa50b71284d104edc901d512 100644
--- a/drivers/net/wireless/ath/ath9k/rc.c
+++ b/drivers/net/wireless/ath/ath9k/rc.c
@@ -682,8 +682,6 @@ static void ath_rc_rate_set_series(const struct ath_rate_table *rate_table,
 	rate->count = tries;
 	rate->idx = rate_table->info[rix].ratecode;
 
-	if (txrc->short_preamble)
-		rate->flags |= IEEE80211_TX_RC_USE_SHORT_PREAMBLE;
 	if (txrc->rts || rtsctsenable)
 		rate->flags |= IEEE80211_TX_RC_USE_RTS_CTS;