diff --git a/e2e/start/basic/app/routes/-server-fns/allow-fn-return-null.tsx b/e2e/start/basic/app/routes/-server-fns/allow-fn-return-null.tsx
index 781b8bc337..2f408d1015 100644
--- a/e2e/start/basic/app/routes/-server-fns/allow-fn-return-null.tsx
+++ b/e2e/start/basic/app/routes/-server-fns/allow-fn-return-null.tsx
@@ -37,14 +37,18 @@ export function AllowServerFnReturnNull() {
         {`GET: $allow_return_null_getFn returns`}
         <br />
         <span data-testid="allow_return_null_getFn-response">
-          {JSON.stringify(getServerResult ?? '-')}
+          {JSON.stringify(
+            getServerResult !== undefined ? getServerResult : '-',
+          )}
         </span>
       </p>
       <p>
         {`POST: $allow_return_null_postFn returns`}
         <br />
         <span data-testid="allow_return_null_postFn-response">
-          {JSON.stringify(postServerResult ?? '-')}
+          {JSON.stringify(
+            postServerResult !== undefined ? postServerResult : '-',
+          )}
         </span>
       </p>
       <button
diff --git a/e2e/start/basic/tests/base.spec.ts b/e2e/start/basic/tests/base.spec.ts
index ea422b17ba..80c30f9d07 100644
--- a/e2e/start/basic/tests/base.spec.ts
+++ b/e2e/start/basic/tests/base.spec.ts
@@ -193,7 +193,7 @@ test('env-only functions can only be called on the server or client respectively
   )
 })
 
-test('Server function can return null for GET and POST calls', async ({
+test.only('Server function can return null for GET and POST calls', async ({
   page,
 }) => {
   await page.goto('/server-fns')