diff --git a/src/apps/personal/nice.nix b/src/apps/personal/nice.nix
index 591a800..5794df8 100644
--- a/src/apps/personal/nice.nix
+++ b/src/apps/personal/nice.nix
@@ -1,5 +1,5 @@
 { ... }: {
     home.shellAliases = builtins.listToAttrs (
-        builtins.genList (value: { name = "n${value - 19}"; value = "nice -n ${value - 19}"; }) 40
+        builtins.genList (value: { name = "n${toString (value - 19)}"; value = "nice -n ${toString (value - 19)}"; }) 40
     );
 }