diff --git a/FrontEnd/src/http/timeline.ts b/FrontEnd/src/http/timeline.ts
index f9f2a6c72..401ae1168 100644
--- a/FrontEnd/src/http/timeline.ts
+++ b/FrontEnd/src/http/timeline.ts
@@ -11,7 +11,7 @@ import { HttpUser } from "./user";
 
 export const kTimelineVisibilities = ["Public", "Register", "Private"] as const;
 
-export type TimelineVisibility = typeof kTimelineVisibilities[number];
+export type TimelineVisibility = (typeof kTimelineVisibilities)[number];
 
 export interface HttpTimelineInfo {
   uniqueId: string;
diff --git a/FrontEnd/src/http/user.ts b/FrontEnd/src/http/user.ts
index 5f117078a..3a5aa9fc0 100644
--- a/FrontEnd/src/http/user.ts
+++ b/FrontEnd/src/http/user.ts
@@ -16,7 +16,7 @@ export const kUserPermissionList = [
   kHighlightTimelineManagement,
 ] as const;
 
-export type UserPermission = typeof kUserPermissionList[number];
+export type UserPermission = (typeof kUserPermissionList)[number];
 
 export interface HttpUser {
   uniqueId: string;
diff --git a/FrontEnd/src/palette.ts b/FrontEnd/src/palette.ts
index 4b927b5b5..d06f9b19c 100644
--- a/FrontEnd/src/palette.ts
+++ b/FrontEnd/src/palette.ts
@@ -42,7 +42,7 @@ const paletteColorList = [
   "success",
 ] as const;
 
-export type PaletteColorType = typeof paletteColorList[number];
+export type PaletteColorType = (typeof paletteColorList)[number];
 
 export type Palette = Record<PaletteColorType, PaletteColor>;