diff --git a/drivers/net/wireless/intel/iwlwifi/mld/ap.c b/drivers/net/wireless/intel/iwlwifi/mld/ap.c
index 571eabd0b511..26511b49d89a 100644
--- a/drivers/net/wireless/intel/iwlwifi/mld/ap.c
+++ b/drivers/net/wireless/intel/iwlwifi/mld/ap.c
@@ -11,6 +11,7 @@
 #include "tx.h"
 #include "power.h"
 #include "key.h"
+#include "phy.h"
 #include "iwl-utils.h"
 
 #include "fw/api/sta.h"
@@ -269,6 +270,7 @@ int iwl_mld_start_ap_ibss(struct ieee80211_hw *hw,
 {
 	struct iwl_mld *mld = IWL_MAC80211_GET_MLD(hw);
 	struct iwl_mld_vif *mld_vif = iwl_mld_vif_from_mac80211(vif);
+	struct ieee80211_chanctx_conf *ctx;
 	int ret;
 
 	if (vif->type == NL80211_IFTYPE_AP)
@@ -314,6 +316,13 @@ int iwl_mld_start_ap_ibss(struct ieee80211_hw *hw,
 		return iwl_mld_mac_fw_action(mld, mld->p2p_device_vif,
 					     FW_CTXT_ACTION_MODIFY);
 
+	/* When the channel context was added, the link is not yet active, so
+	 * min_def is always used. Update the PHY again here in case def should
+	 * actually be used.
+	 */
+	ctx = wiphy_dereference(mld->wiphy, link->chanctx_conf);
+	iwl_mld_update_phy_chandef(mld, ctx);
+
 	return 0;
 rm_bcast:
 	iwl_mld_remove_bcast_sta(mld, vif, link);
diff --git a/drivers/net/wireless/intel/iwlwifi/mld/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mld/mac80211.c
index b64e3f290e71..e06cf72b2de5 100644
--- a/drivers/net/wireless/intel/iwlwifi/mld/mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mld/mac80211.c
@@ -887,9 +887,8 @@ void iwl_mld_change_chanctx(struct ieee80211_hw *hw,
 			return;
 	}
 update:
-	phy->chandef = *chandef;
 
-	iwl_mld_phy_fw_action(mld, ctx, FW_CTXT_ACTION_MODIFY);
+	iwl_mld_update_phy_chandef(mld, ctx);
 }
 
 static u8
diff --git a/drivers/net/wireless/intel/iwlwifi/mld/phy.c b/drivers/net/wireless/intel/iwlwifi/mld/phy.c
index 2345fe5c3291..3a80ee5e1cb3 100644
--- a/drivers/net/wireless/intel/iwlwifi/mld/phy.c
+++ b/drivers/net/wireless/intel/iwlwifi/mld/phy.c
@@ -182,3 +182,14 @@ int iwl_mld_send_phy_cfg_cmd(struct iwl_mld *mld)
 
 	return iwl_mld_send_cmd_pdu(mld, PHY_CONFIGURATION_CMD, &cmd);
 }
+
+void iwl_mld_update_phy_chandef(struct iwl_mld *mld,
+				struct ieee80211_chanctx_conf *ctx)
+{
+	struct iwl_mld_phy *phy = iwl_mld_phy_from_mac80211(ctx);
+	struct cfg80211_chan_def *chandef =
+		iwl_mld_get_chandef_from_chanctx(mld, ctx);
+
+	phy->chandef = *chandef;
+	iwl_mld_phy_fw_action(mld, ctx, FW_CTXT_ACTION_MODIFY);
+}
diff --git a/drivers/net/wireless/intel/iwlwifi/mld/phy.h b/drivers/net/wireless/intel/iwlwifi/mld/phy.h
index 563e309deb0a..0deaf179f07c 100644
--- a/drivers/net/wireless/intel/iwlwifi/mld/phy.h
+++ b/drivers/net/wireless/intel/iwlwifi/mld/phy.h
@@ -54,4 +54,7 @@ u8 iwl_mld_get_fw_ctrl_pos(const struct cfg80211_chan_def *chandef);
 
 int iwl_mld_send_phy_cfg_cmd(struct iwl_mld *mld);
 
+void iwl_mld_update_phy_chandef(struct iwl_mld *mld,
+				struct ieee80211_chanctx_conf *ctx);
+
 #endif /* __iwl_mld_phy_h__ */