diff --git a/modules/programs/default.nix b/modules/programs/default.nix
index e084654f2..e670e2884 100644
--- a/modules/programs/default.nix
+++ b/modules/programs/default.nix
@@ -730,7 +730,7 @@ let
           "org.freedesktop.portal.${p}.*"
           # "org.freedesktop.DBus.Peer"  #< seems to not be needed
           # "org.freedesktop.DBus.Properties"
-          # "org.freedesktop.DBus.Introspectable"
+          "org.freedesktop.DBus.Introspectable.Introspect"  #< REQUIRED, for e.g. `sane-open`
         ];
       }));