diff --git a/modules/services/redshift-gammastep/lib/options.nix b/modules/services/redshift-gammastep/lib/options.nix
index f2c0922b..a5aeac55 100644
--- a/modules/services/redshift-gammastep/lib/options.nix
+++ b/modules/services/redshift-gammastep/lib/options.nix
@@ -182,10 +182,14 @@ in {
       settingsFormat.generate xdgConfigFilePath cfg.settings;
 
     systemd.user.services.${moduleName} = {
-      Unit = {
+      Unit = let
+        geoclueAgentService =
+          lib.optional (cfg.provider == "geoclue2") "geoclue-agent.service";
+      in {
         Description = "${programName} colour temperature adjuster";
         Documentation = serviceDocumentation;
-        After = [ "graphical-session-pre.target" ];
+        After = [ "graphical-session-pre.target" ] ++ geoclueAgentService;
+        Wants = geoclueAgentService;
         PartOf = [ "graphical-session.target" ];
       };