diff --git a/plugins/typescript/src/templates/utils.ts b/plugins/typescript/src/templates/utils.ts
index b0886bcb..3108040d 100644
--- a/plugins/typescript/src/templates/utils.ts
+++ b/plugins/typescript/src/templates/utils.ts
@@ -11,5 +11,5 @@ export const getUtils = () =>
  ? Result
  : ComputeRange<N, [...Result, Result["length"]]>;
 
-export type ${clientErrorStatus} = Exclude<ComputeRange<500>[-1], ComputeRange<400>[-1]>;
-export type ${serverErrorStatus} = Exclude<ComputeRange<600>[-1], ComputeRange<500>[-1]>;`;
+export type ${clientErrorStatus} = Exclude<ComputeRange<500>[number], ComputeRange<400>[number]>;
+export type ${serverErrorStatus} = Exclude<ComputeRange<600>[number], ComputeRange<500>[number]>;`;