diff --git a/tests/common/cache/facts_cache.py b/tests/common/cache/facts_cache.py
index c40e5f9ff0..3b3c5504cb 100644
--- a/tests/common/cache/facts_cache.py
+++ b/tests/common/cache/facts_cache.py
@@ -205,7 +205,7 @@ def _get_default_zone(function, func_args, func_kargs):
     unicode_type = str if sys.version_info.major >= 3 else unicode      # noqa: F821
     if func_args:
         hostname = getattr(func_args[0], "hostname", None)
-    if not hostname or type(hostname) not in [str, unicode_type]:
+    if not hostname or not isinstance(hostname, (str, unicode_type)):
         raise ValueError("Failed to get attribute 'hostname' of type string from instance of type %s."
                          % type(func_args[0]))
     zone = hostname