diff --git a/packages/core/useMutationObserver/index.ts b/packages/core/useMutationObserver/index.ts
index 64c5f982179..94201515807 100644
--- a/packages/core/useMutationObserver/index.ts
+++ b/packages/core/useMutationObserver/index.ts
@@ -1,6 +1,6 @@
 import { tryOnScopeDispose } from '@vueuse/shared'
 import { watch } from 'vue-demi'
-import type { MaybeElementRef } from '../unrefElement'
+import type { MaybeComputedElementRef } from '../unrefElement'
 import { unrefElement } from '../unrefElement'
 import { useSupported } from '../useSupported'
 import type { ConfigurableWindow } from '../_configurable'
@@ -18,7 +18,7 @@ export interface UseMutationObserverOptions extends MutationObserverInit, Config
  * @param options
  */
 export function useMutationObserver(
-  target: MaybeElementRef,
+  target: MaybeComputedElementRef,
   callback: MutationCallback,
   options: UseMutationObserverOptions = {},
 ) {