diff --git a/tests/hwsim/test_ap_acs.py b/tests/hwsim/test_ap_acs.py
index 94ff38a61..ec126e666 100644
--- a/tests/hwsim/test_ap_acs.py
+++ b/tests/hwsim/test_ap_acs.py
@@ -283,7 +283,6 @@ def test_ap_acs_vht160(dev, apdev):
         params['country_code'] = 'ZA'
         params['ieee80211ac'] = '1'
         params['vht_oper_chwidth'] = '2'
-        params["vht_oper_centr_freq_seg0_idx"] = "114"
         params['ieee80211d'] = '1'
         params['ieee80211h'] = '1'
         params['chanlist'] = '100'
@@ -439,3 +438,52 @@ def test_ap_acs_dfs(dev, apdev, params):
         hostapd.cmd_execute(apdev[0], ['iw', 'reg', 'set', '00'])
         dev[0].wait_event(["CTRL-EVENT-REGDOM-CHANGE"], timeout=0.5)
         dev[0].flush_scan_cache()
+
+def test_ap_acs_vht160_dfs(dev, apdev, params):
+    """Automatic channel selection 160 MHz, HT scan, and DFS [long]"""
+    if not params['long']:
+        raise HwsimSkip("Skip test case with long duration due to --long not specified")
+    try:
+        hapd = None
+        force_prev_ap_on_5g(apdev[0])
+        params = hostapd.wpa2_params(ssid="test-acs", passphrase="12345678")
+        params['hw_mode'] = 'a'
+        params['channel'] = '0'
+        params['ht_capab'] = '[HT40+]'
+        params['country_code'] = 'US'
+        params['ieee80211ac'] = '1'
+        params['vht_oper_chwidth'] = '2'
+        params['ieee80211d'] = '1'
+        params['ieee80211h'] = '1'
+        params['acs_num_scans'] = '1'
+        hapd = hostapd.add_ap(apdev[0], params, wait_enabled=False)
+        wait_acs(hapd, return_after_acs=True)
+
+        wait_dfs_event(hapd, "DFS-CAC-START", 5)
+        ev = wait_dfs_event(hapd, "DFS-CAC-COMPLETED", 70)
+        if "success=1" not in ev:
+            raise Exception("CAC failed")
+
+        ev = hapd.wait_event(["AP-ENABLED"], timeout=5)
+        if not ev:
+            raise Exception("AP setup timed out")
+
+        state = hapd.get_status_field("state")
+        if state != "ENABLED":
+            raise Exception("Unexpected interface state")
+
+        freq = int(hapd.get_status_field("freq"))
+        if freq not in [ 5180, 5500 ]:
+            raise Exception("Unexpected frequency: %d" % freq)
+
+        dev[0].connect("test-acs", psk="12345678", scan_freq=str(freq))
+        dev[0].wait_regdom(country_ie=True)
+    finally:
+        if hapd:
+            hapd.request("DISABLE")
+        dev[0].request("DISCONNECT")
+        dev[0].request("ABORT_SCAN")
+        dev[0].wait_event(["CTRL-EVENT-DISCONNECTED"], timeout=0.5)
+        hostapd.cmd_execute(apdev[0], ['iw', 'reg', 'set', '00'])
+        dev[0].wait_event(["CTRL-EVENT-REGDOM-CHANGE"], timeout=0.5)
+        dev[0].flush_scan_cache()