diff --git a/LDP/howto/docbook/Program-Library-HOWTO.sgml b/LDP/howto/docbook/Program-Library-HOWTO.sgml
index eec30d30..eb77b443 100644
--- a/LDP/howto/docbook/Program-Library-HOWTO.sgml
+++ b/LDP/howto/docbook/Program-Library-HOWTO.sgml
@@ -781,7 +781,7 @@ Troll Tech's Technical FAQ</ulink>:
 <orderedlist>
 <listitem><para>
 add reimplementations of virtual functions
-(unless it it safe for older binaries to call the original implementation),
+(unless it is safe for older binaries to call the original implementation),
 because the compiler evaluates SuperClass::virtualFunction() calls
 at compile-time (not link-time).
 </para></listitem>