diff --git a/fastkml/kml.py b/fastkml/kml.py
index cf43c804..771aa8d8 100644
--- a/fastkml/kml.py
+++ b/fastkml/kml.py
@@ -84,7 +84,7 @@ def etree_element(
         if not self.ns:
             root = config.etree.Element(f"{self.ns}kml")  # type: ignore[attr-defined]
             root.set("xmlns", config.KMLNS[1:-1])
-        elif hasattr(config.etree, "LXML_VERSION"):
+        elif hasattr(config.etree, "LXML_VERSION"):  # type: ignore[attr-defined]
             root = config.etree.Element(  # type: ignore[attr-defined]
                 f"{self.ns}kml",
                 nsmap={None: self.ns[1:-1]},