diff --git a/chapter06/ncurses.xml b/chapter06/ncurses.xml
index 7f79b5129..0a8c7e166 100644
--- a/chapter06/ncurses.xml
+++ b/chapter06/ncurses.xml
@@ -137,9 +137,9 @@ popd</userinput></screen>
         <term><parameter>--enable-widec</parameter></term>
         <listitem>
           <para>This switch causes wide-character libraries (e.g., <filename
-          class="libraryfile">libncursesw.so.&ncurses-release;</filename>)
+          class="libraryfile">libncursesw.so.&ncurses-version;</filename>)
           to be built instead of normal ones (e.g., <filename
-          class="libraryfile">libncurses.so.&ncurses-release;</filename>).
+          class="libraryfile">libncurses.so.&ncurses-version;</filename>).
           These wide-character libraries are usable in both multibyte and
           traditional 8-bit locales, while normal libraries work properly
           only in 8-bit locales. Wide-character and normal libraries are