diff --git a/src/pykml/util.py b/src/pykml/util.py
index ae2c1df..dda16b7 100644
--- a/src/pykml/util.py
+++ b/src/pykml/util.py
@@ -70,8 +70,7 @@ def ring_coords_to_wkt(ring):
     ring_wkt_list = []
     context = etree.iterwalk(
              doc,
-             events=("start",),
-             tag="{http://www.opengis.net/kml/2.2}*",
+             events=("start",)
     )
     for action, elem in context:
         if elem.tag in ['{http://www.opengis.net/kml/2.2}Polygon',