diff --git a/configs/i3.nix b/configs/i3.nix
index 3c213f8..c04e40b 100644
--- a/configs/i3.nix
+++ b/configs/i3.nix
@@ -309,6 +309,14 @@ in {
       };
     };
 
+    services.gammastep = {
+      enable = true;
+      provider = "geoclue2";
+      tray = true;
+      temperature.night = 1500;
+      temperature.day = 6500;
+    };
+
     xsession.windowManager.i3 = {
       enable = true;
       extraConfig = ''
diff --git a/configs/spacetime.nix b/configs/spacetime.nix
index 37c8daf..4d6c3ad 100644
--- a/configs/spacetime.nix
+++ b/configs/spacetime.nix
@@ -3,5 +3,6 @@
   location = {
     latitude = 52.517;
     longitude = 13.3872;
+    provider = "geoclue2";
   };
 }