diff --git a/drivers/net/wireless/ath/ath9k/ar9002_mac.c b/drivers/net/wireless/ath/ath9k/ar9002_mac.c
index ce9a0a53771e..fba5a847c3bb 100644
--- a/drivers/net/wireless/ath/ath9k/ar9002_mac.c
+++ b/drivers/net/wireless/ath/ath9k/ar9002_mac.c
@@ -120,7 +120,7 @@ static bool ar9002_hw_get_isr(struct ath_hw *ah, enum ath9k_int *masked,
 					 AR_ISR_TXEOL);
 			}
 
-			ah->intr_txqs |= MS(s0_s, AR_ISR_S0_QCU_TXOK);
+			ah->intr_txqs = MS(s0_s, AR_ISR_S0_QCU_TXOK);
 			ah->intr_txqs |= MS(s0_s, AR_ISR_S0_QCU_TXDESC);
 			ah->intr_txqs |= MS(s1_s, AR_ISR_S1_QCU_TXERR);
 			ah->intr_txqs |= MS(s1_s, AR_ISR_S1_QCU_TXEOL);