diff --git a/sys/contrib/dev/ath/ath_hal/ar9300/ar9300_attach.c b/sys/contrib/dev/ath/ath_hal/ar9300/ar9300_attach.c
index a446f96e891..adbef28c6a4 100644
--- a/sys/contrib/dev/ath/ath_hal/ar9300/ar9300_attach.c
+++ b/sys/contrib/dev/ath/ath_hal/ar9300/ar9300_attach.c
@@ -2671,7 +2671,7 @@ ar9300_fill_capability_info(struct ath_hal *ah)
     p_cap->halBurstSupport = AH_TRUE;
     p_cap->halChapTuningSupport = AH_TRUE;
     p_cap->halTurboPrimeSupport = AH_TRUE;
-    p_cap->halFastFramesSupport = AH_FALSE;
+    p_cap->halFastFramesSupport = AH_TRUE;
 
     p_cap->halTurboGSupport = p_cap->halWirelessModes & HAL_MODE_108G;
 
diff --git a/sys/dev/ath/ath_hal/ar5416/ar5416_attach.c b/sys/dev/ath/ath_hal/ar5416/ar5416_attach.c
index a20499a3c02..4b9ebdafb24 100644
--- a/sys/dev/ath/ath_hal/ar5416/ar5416_attach.c
+++ b/sys/dev/ath/ath_hal/ar5416/ar5416_attach.c
@@ -937,13 +937,7 @@ ar5416FillCapabilityInfo(struct ath_hal *ah)
 
 	pCap->halCompressSupport = AH_FALSE;
 	pCap->halBurstSupport = AH_TRUE;
-	/*
-	 * This is disabled for now; the net80211 layer needs to be
-	 * taught when it is and isn't appropriate to enable FF processing
-	 * with 802.11n NICs (it tries to enable both A-MPDU and
-	 * fast frames, with very tragic crash-y results.)
-	 */
-	pCap->halFastFramesSupport = AH_FALSE;
+	pCap->halFastFramesSupport = AH_TRUE;
 	pCap->halChapTuningSupport = AH_TRUE;
 	pCap->halTurboPrimeSupport = AH_TRUE;