diff --git a/docs/reference/ChangeLog b/docs/reference/ChangeLog
index f280c2290..28b55fd6a 100644
--- a/docs/reference/ChangeLog
+++ b/docs/reference/ChangeLog
@@ -1,3 +1,9 @@
+2008-11-03 Matthias Clasen  <mclasen@redhat.com>
+
+	Bug 552776 – ac_cv_func_posix_getgrgid_r not mentioned
+
+	* glib/cross.sgml: Mention ac_cv_func_posix_getgrgid_r.
+
 2008-10-29 16:04:38  Tim Janik  <timj@gtk.org>
 
 	* glib/tmpl/macros_misc.sgml: Clarified/added docs for
diff --git a/docs/reference/glib/cross.sgml b/docs/reference/glib/cross.sgml
index 4f39f9419..383f32fd5 100644
--- a/docs/reference/glib/cross.sgml
+++ b/docs/reference/glib/cross.sgml
@@ -153,6 +153,14 @@ chmod a-w win32.cache   # prevent configure from changing it
             safest to set this to "no".
          </para>
       </formalpara>
+      <formalpara>
+         <title>ac_cv_func_posix_getgrgid_r=[yes/no]</title>
+ 
+         <para>
+            Whether you have a getgrgid_r function that conforms to
+            the POSIX spec.
+         </para>
+      </formalpara>
       <formalpara>
          <title>glib_cv_use_pid_surrogate=[yes/no]</title>