diff --git a/home/modules/redshift.nix b/home/modules/redshift.nix
index 8ef64be..d4f3f60 100644
--- a/home/modules/redshift.nix
+++ b/home/modules/redshift.nix
@@ -22,7 +22,7 @@ in
         Type = "exec";
         ExecStart =
           let
-            catFile = file: "$(${pkgs.coreutils}/bin/cat ${file})";
+            catFile = file: "\$(${pkgs.coreutils}/bin/cat ${file})";
             toPaths = deg: "${cfgDir}/${deg}";
             fetchLatLon = lib.right
               (lib.strings.concatStringsSep ":")