diff --git a/Doc/lib/liburllib.tex b/Doc/lib/liburllib.tex
index 386f33e730d..a2ebc327e4d 100644
--- a/Doc/lib/liburllib.tex
+++ b/Doc/lib/liburllib.tex
@@ -146,7 +146,7 @@ The public functions \function{urlopen()} and
 \class{FancyURLopener} class and use it to perform their requested
 actions.  To override this functionality, programmers can create a
 subclass of \class{URLopener} or \class{FancyURLopener}, then assign
-that an instance of that class to the
+an instance of that class to the
 \code{urllib._urlopener} variable before calling the desired function.
 For example, applications may want to specify a different
 \mailheader{User-Agent} header than \class{URLopener} defines.  This