fix typo

diff --git a/docs/users_guide/using.xml b/docs/users_guide/using.xml
index f769d28..8b87620 100644 (file)
--- a/docs/users_guide/using.xml
+++ b/docs/users_guide/using.xml
@@ -120,7 +120,7 @@ module X where
        <listitem>
          <para>Most non-mode flags fall into this category.  A dynamic flag
            may be used on the command line, in a
-           <literal>GHC_OPTIONS</literal> pragma in a source file, or set
+           <literal>OPTIONS_GHC</literal> pragma in a source file, or set
            using <literal>:set</literal> in GHCi.</para>
        </listitem>
       </varlistentry>