diff --git a/tests/test_xml_loader.py b/tests/test_xml_loader.py
index d339c4a..87a9400 100644
--- a/tests/test_xml_loader.py
+++ b/tests/test_xml_loader.py
@@ -105,3 +105,9 @@ def test_xml_loader_from_string(self):
     def test_xml_loader_from_empty_string(self):
         with self.assertRaises(ParseError):
             len(xml('', read_from_src=True))
+
+    @patch('builtins.__import__', side_effect=ImportError('Mocked ImportError'))
+    def test_defusedxml_not_installed(self, mock_import):
+        with self.assertRaises(ImportError):
+            from pystreamapi.loaders import xml
+            xml(file_path)