diff --git a/tests/hwsim/test_ap_eap.py b/tests/hwsim/test_ap_eap.py
index 64acae9d0..913132275 100644
--- a/tests/hwsim/test_ap_eap.py
+++ b/tests/hwsim/test_ap_eap.py
@@ -4187,13 +4187,13 @@ def ocsp_resp_ca_signed(reqfile, outfile, status):
         return
     arg = ["openssl", "ocsp",
            "-index", "auth_serv/index%s.txt" % status,
-	   "-rsigner", "auth_serv/ca.pem",
-	   "-rkey", "auth_serv/ca-key.pem",
-	   "-CA", "auth_serv/ca.pem",
-	   "-ndays", "7",
-	   "-reqin", reqfile,
-	   "-resp_no_certs",
-	   "-respout", outfile]
+           "-rsigner", "auth_serv/ca.pem",
+           "-rkey", "auth_serv/ca-key.pem",
+           "-CA", "auth_serv/ca.pem",
+           "-ndays", "7",
+           "-reqin", reqfile,
+           "-resp_no_certs",
+           "-respout", outfile]
     run_openssl(arg)
     if not os.path.exists(outfile):
         raise HwsimSkip("No OCSP response available")
@@ -4204,12 +4204,12 @@ def ocsp_resp_server_signed(reqfile, outfile):
         return
     arg = ["openssl", "ocsp",
            "-index", "auth_serv/index.txt",
-	   "-rsigner", "auth_serv/server.pem",
-	   "-rkey", "auth_serv/server.key",
-	   "-CA", "auth_serv/ca.pem",
-	   "-ndays", "7",
-	   "-reqin", reqfile,
-	   "-respout", outfile]
+           "-rsigner", "auth_serv/server.pem",
+           "-rkey", "auth_serv/server.key",
+           "-CA", "auth_serv/ca.pem",
+           "-ndays", "7",
+           "-reqin", reqfile,
+           "-respout", outfile]
     run_openssl(arg)
     if not os.path.exists(outfile):
         raise HwsimSkip("No OCSP response available")
diff --git a/tests/hwsim/test_ap_ft.py b/tests/hwsim/test_ap_ft.py
index e3cd4bee0..93497a460 100644
--- a/tests/hwsim/test_ap_ft.py
+++ b/tests/hwsim/test_ap_ft.py
@@ -387,7 +387,7 @@ def test_ap_ft_vlan_2(dev, apdev):
     hapd1 = hostapd.add_ap(apdev[1]['ifname'], params)
 
     run_roams(dev[0], apdev, hapd0, hapd1, ssid, passphrase, conndev="brvlan1",
-	      force_initial_conn_to_first_ap=True)
+              force_initial_conn_to_first_ap=True)
     if "[WPA2-FT/PSK-CCMP]" not in dev[0].request("SCAN_RESULTS"):
         raise Exception("Scan results missing RSN element info")
 
diff --git a/tests/hwsim/test_wpas_config.py b/tests/hwsim/test_wpas_config.py
index 7688c20d1..ba408252a 100644
--- a/tests/hwsim/test_wpas_config.py
+++ b/tests/hwsim/test_wpas_config.py
@@ -494,9 +494,9 @@ def test_wpas_config_file_set_global(dev):
                   "pkcs11_module_path", "openssl_ciphers", "pcsc_reader",
                   "pcsc_pin", "driver_param", "manufacturer", "model_name",
                   "model_number", "serial_number", "config_methods",
-	          "p2p_ssid_postfix", "autoscan", "ext_password_backend",
-	          "osu_dir", "wowlan_triggers", "fst_group_id",
-	          "sched_scan_plans", "non_pref_chan"]
+                  "p2p_ssid_postfix", "autoscan", "ext_password_backend",
+                  "osu_dir", "wowlan_triggers", "fst_group_id",
+                  "sched_scan_plans", "non_pref_chan"]
         for field in fields:
             if "FAIL" not in wpas.request('SET %s hello\nmodel_name=foobar' % field):
                 raise Exception("Invalid %s value accepted" % field)