diff --git a/code/addons/actions/src/loaders.ts b/code/addons/actions/src/loaders.ts
index cc6c8494b7fc..3acfa9795eef 100644
--- a/code/addons/actions/src/loaders.ts
+++ b/code/addons/actions/src/loaders.ts
@@ -2,6 +2,8 @@
 import type { LoaderFunction } from '@storybook/types';
 import { action } from './runtime';
 
+export const tinySpyInternalState = Symbol.for('tinyspy:spy');
+
 const attachActionsToFunctionMocks: LoaderFunction = (context) => {
   const {
     args,
@@ -15,7 +17,11 @@ const attachActionsToFunctionMocks: LoaderFunction = (context) => {
         typeof value === 'function' && '_isMockFunction' in value && value._isMockFunction
     )
     .forEach(([key, value]) => {
-      const previous = value.getMockImplementation();
+      // See this discussion for context:
+      // https://github.com/vitest-dev/vitest/pull/5352
+      const previous =
+        value.getMockImplementation() ??
+        (tinySpyInternalState in value ? value[tinySpyInternalState]?.getOriginal() : undefined);
       if (previous?._actionAttached !== true && previous?.isAction !== true) {
         const implementation = (...params: unknown[]) => {
           action(key)(...params);