diff --git a/nixos/modules/services/x11/redshift.nix b/nixos/modules/services/x11/redshift.nix
index c2ee9d7f2c4b..b9ad962d8e46 100644
--- a/nixos/modules/services/x11/redshift.nix
+++ b/nixos/modules/services/x11/redshift.nix
@@ -40,6 +40,7 @@ in {
     systemd.services.redshift = {
       description = "Redshift colour temperature adjuster";
       requires = [ "display-manager.service" ];
+      after = [ "display-manager.service" ];
       script = ''
         ${pkgs.redshift}/bin/redshift \
           -l ${cfg.latitude}:${cfg.longitude} \