diff --git a/python/tests/test_rustlib.py b/python/tests/test_rustlib.py
index 32824f7..d97d4c3 100644
--- a/python/tests/test_rustlib.py
+++ b/python/tests/test_rustlib.py
@@ -626,6 +626,13 @@ def test_serialize():
     assert rl.serialize(dom.root(), 0, is_html=False) == b"<hello>Ali</hello>"
 
 
+def test_class_modules():
+    classes = [value for value in vars(rl).values() if isinstance(value, type)]
+    assert rl.HtmlOptions in classes
+
+    for cls in classes:
+        assert cls.__module__ == "markupever._rustlib", cls
+
 def test_iter_submodule():
     import markupever._rustlib.iter
 
diff --git a/src/parser.rs b/src/parser.rs
index f563b18..5ff53d0 100644
--- a/src/parser.rs
+++ b/src/parser.rs
@@ -2,7 +2,7 @@
 ///
 /// # Note
 /// this type is immutable.
-#[pyo3::pyclass(name = "HtmlOptions", module = "markupselect._rustlib", frozen)]
+#[pyo3::pyclass(name = "HtmlOptions", module = "markupever._rustlib", frozen)]
 pub struct PyHtmlOptions {
     exact_errors: bool,
     discard_bom: bool,
@@ -139,7 +139,7 @@ impl PyHtmlOptions {
     }
 }
 
-#[pyo3::pyclass(name = "XmlOptions", module = "markupselect._rustlib", frozen)]
+#[pyo3::pyclass(name = "XmlOptions", module = "markupever._rustlib", frozen)]
 pub struct PyXmlOptions {
     exact_errors: bool,
     discard_bom: bool,