diff --git a/data/rugby.gresource.xml b/data/rugby.gresource.xml
index 24d7d8021fb02440d60b430057075d59592de603..418da70d1117bb1a8bc1e93ba50815a4680cbcb5 100644
--- a/data/rugby.gresource.xml
+++ b/data/rugby.gresource.xml
@@ -1,13 +1,13 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
-  SPDX-FileCopyrightText: 2012-2020 Bruce Cowan <bruce@bcowan.me.uk>
+  SPDX-FileCopyrightText: 2012-2021 Bruce Cowan <bruce@bcowan.me.uk>
 
   SPDX-License-Identifier: GPL-3.0-or-later
 -->
 <gresources>
   <gresource prefix="/uk/me/bcowan/rugby">
-    <file preprocess="xml-stripblanks">interface.ui</file>
-    <file preprocess="xml-stripblanks">prefs.ui</file>
+    <file preprocess="xml-stripblanks" compressed="true">interface.ui</file>
+    <file preprocess="xml-stripblanks" compressed="true">prefs.ui</file>
     <file compressed="true">rugby.css</file>
   </gresource>
 </gresources>