diff --git a/text/lib/BeautifulSoup.py b/text/lib/BeautifulSoup.py
index 2d3e44c..3d0d4c9 100644
--- a/text/lib/BeautifulSoup.py
+++ b/text/lib/BeautifulSoup.py
@@ -364,7 +364,7 @@ class NavigableString(unicode, PageElement):
             raise AttributeError, "'%s' object has no attribute '%s'" % (self.__class__.__name__, attr)
 
     def __unicode__(self):
-        return __str__(self, None)
+        return self.__str__(None)
 
     def __str__(self, encoding=DEFAULT_OUTPUT_ENCODING):
         if encoding: