diff --git a/general/genlib/libgsf.xml b/general/genlib/libgsf.xml
index 49ec41686b..92a7e89de6 100644
--- a/general/genlib/libgsf.xml
+++ b/general/genlib/libgsf.xml
@@ -83,7 +83,7 @@
 
     <bridgehead renderas="sect4">Optional</bridgehead>
     <para role="optional">
-      <xref linkend="gobject-introspection"/> 
+      <xref linkend="gobject-introspection"/>,
       <xref linkend="gtk-doc"/>, and
       <xref linkend="valgrind"/> (for tests)
     </para>