diff --git a/hostapd/config_file.c b/hostapd/config_file.c
index 4c1eeda58..8e179d151 100644
--- a/hostapd/config_file.c
+++ b/hostapd/config_file.c
@@ -4760,6 +4760,16 @@ static int hostapd_config_fill(struct hostapd_config *conf,
 		conf->eht_phy_capab.mu_beamformer = atoi(pos);
 	} else if (os_strcmp(buf, "punct_bitmap") == 0) {
 		conf->punct_bitmap = atoi(pos);
+	} else if (os_strcmp(buf, "punct_acs_threshold") == 0) {
+		int val = atoi(pos);
+
+		if (val < 0 || val > 100) {
+			wpa_printf(MSG_ERROR,
+				   "Line %d: punct_acs_threshold must be between 0 and 100",
+				   line);
+			return 1;
+		}
+		conf->punct_acs_threshold = val;
 #endif /* CONFIG_IEEE80211BE */
 	} else {
 		wpa_printf(MSG_ERROR,
diff --git a/hostapd/hostapd.conf b/hostapd/hostapd.conf
index 401c84f19..bc4a0f6ef 100644
--- a/hostapd/hostapd.conf
+++ b/hostapd/hostapd.conf
@@ -1034,6 +1034,12 @@ wmm_ac_vo_acm=0
 # value is 0 indicating that all channels are active.
 #punct_bitmap=0
 
+# Preamble puncturing threshold in automatic channel selection (ACS).
+# The value indicates the percentage of ideal channel average interference
+# factor above which a channel should be punctured.
+# Default is 0, indicates that ACS algorithm should not puncture any channel.
+#punct_acs_threshold=75
+
 ##### IEEE 802.1X-2004 related configuration ##################################
 
 # Require IEEE 802.1X authorization
diff --git a/src/ap/ap_config.h b/src/ap/ap_config.h
index 04a9c409c..8598602b1 100644
--- a/src/ap/ap_config.h
+++ b/src/ap/ap_config.h
@@ -1157,6 +1157,7 @@ struct hostapd_config {
 	u8 eht_oper_centr_freq_seg0_idx;
 	struct eht_phy_capabilities_info eht_phy_capab;
 	u16 punct_bitmap; /* a bitmap of disabled 20 MHz channels */
+	u8 punct_acs_threshold;
 #endif /* CONFIG_IEEE80211BE */
 
 	/* EHT enable/disable config from CHAN_SWITCH */