SF bug #1201807:  Glossary listing bug
diff --git a/Doc/tut/glossary.tex b/Doc/tut/glossary.tex
index 7f04a79..77374e8 100644
--- a/Doc/tut/glossary.tex
+++ b/Doc/tut/glossary.tex
@@ -86,7 +86,7 @@
 integers starting from zero.  Called a hash in Perl.
 
 \index{duck-typing}
-\item{duck-typing}
+\item[duck-typing]
 Pythonic programming style that determines an object's type by inspection
 of its method or attribute signature rather than by explicit relationship
 to some type object ("If it looks like a duck and quacks like a duck, it