diff --git a/server/utils/source.ts b/server/utils/source.ts
index 490584e..3e66bf8 100644
--- a/server/utils/source.ts
+++ b/server/utils/source.ts
@@ -2,8 +2,10 @@ import type { AllSourceID } from "@shared/types"
 import defu from "defu"
 import type { RSSHubOption, RSSHubInfo as RSSHubResponse, SourceGetter, SourceOption } from "#/types"
 
-type X = SourceGetter | Partial<Record<AllSourceID, SourceGetter>>
-export function defineSource<T extends X>(source: T): T {
+type R = Partial<Record<AllSourceID, SourceGetter>>
+export function defineSource(source: SourceGetter): SourceGetter
+export function defineSource(source: R): R
+export function defineSource(source: SourceGetter | R): SourceGetter | R {
   return source
 }
 
diff --git a/src/components/column/index.tsx b/src/components/column/index.tsx
index dd57aa0..ba46dc2 100644
--- a/src/components/column/index.tsx
+++ b/src/components/column/index.tsx
@@ -1,4 +1,4 @@
-import type { ColumnID } from "@shared/types"
+import type { FixedColumnID } from "@shared/types"
 import { useAtom } from "jotai"
 import { useEffect } from "react"
 import { useTitle } from "react-use"
@@ -7,7 +7,7 @@ import { NavBar } from "../navbar"
 import { Dnd } from "./dnd"
 import { currentColumnIDAtom } from "~/atoms"
 
-export function Column({ id }: { id: ColumnID }) {
+export function Column({ id }: { id: FixedColumnID }) {
   const [currentColumnID, setCurrentColumnID] = useAtom(currentColumnIDAtom)
   useEffect(() => {
     setCurrentColumnID(id)