diff --git a/Doc/lib/libhtmlparser.tex b/Doc/lib/libhtmlparser.tex
index ce983f3e95..a202df5d2b 100644
--- a/Doc/lib/libhtmlparser.tex
+++ b/Doc/lib/libhtmlparser.tex
@@ -132,7 +132,7 @@ is intended to be overridden by a derived class; the base class
 implementation does nothing.
 
 \note{The \class{HTMLParser} class uses the SGML syntactic rules for
-processing instruction.  An XHTML processing instruction using the
+processing instructions.  An XHTML processing instruction using the
 trailing \character{?} will cause the \character{?} to be included in
 \var{data}.}
 \end{methoddesc}