diff --git a/ironic_inspector/pxe_filter/dnsmasq.py b/ironic_inspector/pxe_filter/dnsmasq.py
index a69c372a7..cd2527666 100644
--- a/ironic_inspector/pxe_filter/dnsmasq.py
+++ b/ironic_inspector/pxe_filter/dnsmasq.py
@@ -205,8 +205,6 @@ def _exclusive_write_or_pass(path, buf):
 def _configure_unknown_hosts():
     """Manages a dhcp_hostsdir ignore/not-ignore record for unknown macs.
 
-    :param allow: If True unknown hosts are whitelisted. If False unknown hosts
-                  are blacklisted.
     :raises: FileNotFoundError in case the dhcp_hostsdir is invalid,
              IOError in case the dhcp host unknown file isn't writable.
     :returns: None.
diff --git a/ironic_inspector/test/unit/test_dnsmasq_pxe_filter.py b/ironic_inspector/test/unit/test_dnsmasq_pxe_filter.py
index ce4ad406d..17819e666 100644
--- a/ironic_inspector/test/unit/test_dnsmasq_pxe_filter.py
+++ b/ironic_inspector/test/unit/test_dnsmasq_pxe_filter.py
@@ -42,11 +42,11 @@ class TestShouldEnableUnknownHosts(DnsmasqTestBase):
 
     def test_introspection_active(self):
         self.mock_introspection_active.return_value = True
-        self.assertIs(True, dnsmasq._should_enable_unknown_hosts())
+        self.assertTrue(dnsmasq._should_enable_unknown_hosts())
 
     def test_introspection_not_active(self):
         self.mock_introspection_active.return_value = False
-        self.assertIs(False, dnsmasq._should_enable_unknown_hosts())
+        self.assertFalse(dnsmasq._should_enable_unknown_hosts())
 
 
 class TestDnsmasqDriverAPI(DnsmasqTestBase):