diff --git a/data/hu.kramo.Cartridges.metainfo.xml.in b/data/hu.kramo.Cartridges.metainfo.xml.in
index 79e8da7..76165f8 100644
--- a/data/hu.kramo.Cartridges.metainfo.xml.in
+++ b/data/hu.kramo.Cartridges.metainfo.xml.in
@@ -24,6 +24,10 @@
   <recommends>
     <display_length compare="gt">280</display_length>
   </recommends>
+  <custom>
+    <value key="Purism::form_factor">workstation</value>
+    <value key="Purism::form_factor">mobile</value>
+  </custom>
   <screenshots>
     <screenshot type="default">
       <image>https://raw.githubusercontent.com/kra-mo/cartridges/main/data/screenshots/1.png</image>