diff --git a/nixos/modules/services/desktops/flatpak.nix b/nixos/modules/services/desktops/flatpak.nix
index edae8c1cad8..7fb0024f37d 100644
--- a/nixos/modules/services/desktops/flatpak.nix
+++ b/nixos/modules/services/desktops/flatpak.nix
@@ -39,6 +39,9 @@ in {
       "/var/lib/flatpak/exports"
     ];
 
+    # It has been possible since https://github.com/flatpak/flatpak/releases/tag/1.3.2
+    # to build a SELinux policy module.
+
     users.users.flatpak = {
       description = "Flatpak system helper";
       group = "flatpak";