diff --git a/Doc/ref/ref3.tex b/Doc/ref/ref3.tex
index 771067d..98618f1 100644
--- a/Doc/ref/ref3.tex
+++ b/Doc/ref/ref3.tex
@@ -1150,7 +1150,7 @@
 By convention, \code{False} is used for false and \code{True} for true.
 
 There are no implied relationships among the comparison operators.
-The truth of {\var{x}==\var{y}} does not imply that \code{\var{x}!=\var{y}}
+The truth of \code{\var{x}==\var{y}} does not imply that \code{\var{x}!=\var{y}}
 is false.  Accordingly, when defining \method{__eq__}, one should also
 define \method{__ne__} so that the operators will behave as expected.