diff --git a/desktop/xfce/addon/xfce4-mailwatch-plugin/pspec.xml b/desktop/xfce/addon/xfce4-mailwatch-plugin/pspec.xml
index 8934aa6ffb..5eb11cc8de 100644
--- a/desktop/xfce/addon/xfce4-mailwatch-plugin/pspec.xml
+++ b/desktop/xfce/addon/xfce4-mailwatch-plugin/pspec.xml
@@ -10,7 +10,6 @@
         </Packager>
         <License>GPLv2</License>
         <IsA>app</IsA>
-        <PartOf>desktop.xfce.addon</PartOf>
         <Summary>A mailbox plugin for Xfce4</Summary>
         <Description>A mailbox watch/check plugin for the Xfce4 panel</Description>
         <Archive sha1sum="9a971b59794e6d43b09a66ea1418cf0a18d7c3ea" type="tarbz2">https://archive.xfce.org/src/panel-plugins/xfce4-mailwatch-plugin/1.3/xfce4-mailwatch-plugin-1.3.1.tar.bz2</Archive>