diff --git a/packages/vite/src/node/index.ts b/packages/vite/src/node/index.ts
index 0e246615bfa5f3..d8e97d5a6a382f 100644
--- a/packages/vite/src/node/index.ts
+++ b/packages/vite/src/node/index.ts
@@ -119,6 +119,7 @@ export type {
 // dep types
 export type {
   AliasOptions,
+  MapToFunction,
   ResolverFunction,
   ResolverObject,
   Alias
diff --git a/packages/vite/src/types/alias.d.ts b/packages/vite/src/types/alias.d.ts
index 3f4393586f1299..5752c25c04fc96 100644
--- a/packages/vite/src/types/alias.d.ts
+++ b/packages/vite/src/types/alias.d.ts
@@ -40,7 +40,9 @@ export interface Alias {
   customResolver?: ResolverFunction | ResolverObject | null
 }
 
-export type ResolverFunction = PluginHooks['resolveId']
+export type MapToFunction<T> = T extends Function ? T : never
+
+export type ResolverFunction = MapToFunction<PluginHooks['resolveId']>
 
 export interface ResolverObject {
   buildStart?: PluginHooks['buildStart']