diff --git a/general/prog/python-modules/python-dbusmock.xml b/general/prog/python-modules/python-dbusmock.xml
index e650e971f6..b35e6c31f1 100644
--- a/general/prog/python-modules/python-dbusmock.xml
+++ b/general/prog/python-modules/python-dbusmock.xml
@@ -75,8 +75,10 @@
       <bridgehead renderas="sect5">Optional</bridgehead>
       <para role="optional">
         <xref linkend="pytest"/> (required to run the test suite),
-        <xref linkend="bluez"/> and <xref linkend="upower"/> (optional for
-        the test suite)
+        <xref linkend="pygobject3"/> (required to run the test suite),
+        <xref linkend="bluez"/> (optional for the test suite), and
+        <xref linkend="upower"/> (optional for the test suite; if not
+        installed one test will fail)
       </para>
 
     </sect3>