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diff --git a/docs/users_guide/runghc.xml b/docs/users_guide/runghc.xml
index 8355fa5..ec55a43 100644
--- a/docs/users_guide/runghc.xml
+++ b/docs/users_guide/runghc.xml
@@ -6,28 +6,33 @@
   <para>runghc allows you to run Haskell programs without first having
   to compile them.</para>
 
-  <sect1 id="ghci-introduction">
+  <sect1 id="runghc-introduction">
     <title>Flags</title>
 
     <para>The runghc commandline looks like:</para>
 <screen>
-runghc [runghc flags] [GHC flags] module [program flags]
+runghc [runghc flags] [GHC flags] module [program args]
 </screen>
-    <para>The only runghc flag currently is
+    <para>The runghc flags are
     <literal>-f /path/to/ghc</literal>,
-    which tells runghc which GHC to use to run the program. If it is
+    which tells runghc which GHC to use to run the program,
+    and <literal>--help</literal>, which prints usage information. If it is
     not given then runghc will search for GHC in the directories in the
     system search path.</para>
 
     <para>runghc will try to work out where the boundaries between
     <literal>[runghc flags]</literal> and
     <literal>[GHC flags]</literal>, and
-    <literal>[GHC flags]</literal> and
+    <literal>[program args]</literal> and
     <literal>module</literal> are, but you can use a
     <literal>--</literal> flag if it doesn't get it right. For example,
     <literal>runghc -- -fglasgow-exts Foo</literal> means runghc
     won't try to use <literal>glasgow-exts</literal> as the path to GHC,
-    but instead will pass the flag to GHC.
+    but instead will pass the flag to GHC. If a GHC flag doesn't start
+    with a dash then you need to prefix it with
+    <literal>--ghc-arg=</literal> or runghc will think that it is the
+    program to run, e.g.
+    <literal>runghc -package-conf --ghc-arg=foo.conf Main.hs</literal>.
     </para>
 
   </sect1>