diff --git a/lib/default.nix b/lib/default.nix
index efb767a..28e205f 100644
--- a/lib/default.nix
+++ b/lib/default.nix
@@ -10,7 +10,7 @@
   supportedSystems = ["x86_64-linux" "x86_64-darwin" "aarch64-linux" "aarch64-darwin"];
   runes = import ../modules/runes;
 in rec {
-  mkRune = {rune, number ? "2", runeKind ? "braille"}: "\e[3${number}m" + runes.${rune}.${runeKind} + "\e[0m";
+  mkRune = {rune, number ? "2", runeKind ? "braille"}: "^[[1;3${number}m" + runes.${rune}.${runeKind} + "^[[0m";
 
   forAllSystems = f: genAttrs supportedSystems (system: f nixpkgs.legacyPackages.${system});