diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index de84d1f802e..dcc4b2d5598 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -3188,6 +3188,8 @@ static int iwl_mac_setup_register(struct iwl_priv *priv,
 		    IEEE80211_HW_SPECTRUM_MGMT |
 		    IEEE80211_HW_REPORTS_TX_ACK_STATUS;
 
+	hw->max_tx_aggregation_subframes = LINK_QUAL_AGG_FRAME_LIMIT_DEF;
+
 	if (!priv->cfg->base_params->broken_powersave)
 		hw->flags |= IEEE80211_HW_SUPPORTS_PS |
 			     IEEE80211_HW_SUPPORTS_DYNAMIC_PS;