diff --git a/home/linux/gui/base/noctalia/config/config.toml b/home/linux/gui/base/noctalia/config/config.toml
index 18713f3b..0af037fe 100644
--- a/home/linux/gui/base/noctalia/config/config.toml
+++ b/home/linux/gui/base/noctalia/config/config.toml
@@ -24,6 +24,8 @@ directory = "~/Pictures/Screenshots"
 [theme]
 source = "builtin"
 builtin = "Catppuccin"
+# Follow the sunrise/sunset schedule from [location].
+mode = "auto"
 
 # Application theming is managed by catppuccin/nix, so Noctalia templates stay off.
 [theme.templates]