diff --git a/packages/runtime-core/src/componentProps.ts b/packages/runtime-core/src/componentProps.ts
index b07ca81d875..165df256ed6 100644
--- a/packages/runtime-core/src/componentProps.ts
+++ b/packages/runtime-core/src/componentProps.ts
@@ -47,7 +47,11 @@ type DefaultFactory<T> = (props: Data) => T | null | undefined
 interface PropOptions<T = any, D = T> {
   type?: PropType<T> | true | null
   required?: boolean
-  default?: D | DefaultFactory<D> | null | undefined
+  default?:
+    | D
+    | DefaultFactory<T extends (...arg: any) => any ? D : T>
+    | null
+    | undefined
   validator?(value: unknown): boolean
 }
 
diff --git a/test-dts/defineComponent.test-d.tsx b/test-dts/defineComponent.test-d.tsx
index 6918db61c8e..d334a3a9a1c 100644
--- a/test-dts/defineComponent.test-d.tsx
+++ b/test-dts/defineComponent.test-d.tsx
@@ -30,6 +30,7 @@ describe('with object props', () => {
     hhh: boolean
     ggg: 'foo' | 'bar'
     validated?: string
+    fnWithDefault: (a: number) => number
   }
 
   type GT = string & { __brand: unknown }
@@ -93,6 +94,10 @@ describe('with object props', () => {
         type: String,
         // validator requires explicit annotation
         validator: (val: unknown) => val !== ''
+      },
+      fnWithDefault: {
+        type: Function as PropType<(a: number) => number>,
+        default: (a: number) => a * 2
       }
     },
     setup(props) {
@@ -113,6 +118,7 @@ describe('with object props', () => {
       expectType<ExpectedProps['hhh']>(props.hhh)
       expectType<ExpectedProps['ggg']>(props.ggg)
       expectType<ExpectedProps['validated']>(props.validated)
+      expectType<ExpectedProps['fnWithDefault']>(props.fnWithDefault)
 
       // @ts-expect-error props should be readonly
       expectError((props.a = 1))