diff --git a/lib/Controller/PublicController.php b/lib/Controller/PublicController.php
index 12130dad6..28dd0feb4 100644
--- a/lib/Controller/PublicController.php
+++ b/lib/Controller/PublicController.php
@@ -207,7 +207,7 @@ class PublicController extends Controller {
 	 */
 	public function getVotes(string $token): DataResponse {
 		return $this->response(function () use ($token) {
-			return ['votes' =>AnonymizeService::replaceUserId($this->voteService->list(0, $token))];
+			return ['votes' => AnonymizeService::replaceUserId($this->voteService->list(0, $token))];
 		});
 	}
 
diff --git a/lib/Service/AnonymizeService.php b/lib/Service/AnonymizeService.php
index 6e396b56f..b3eae276a 100644
--- a/lib/Service/AnonymizeService.php
+++ b/lib/Service/AnonymizeService.php
@@ -117,9 +117,11 @@ class AnonymizeService {
 	}
 
 	/**
-	 * Replaces userIds with displayName to avoid exposing usernames in public polls
+	 * 	 * Replaces userIds with displayName to avoid exposing usernames in public polls
+	 *
+	 * @param (Comment|Option|Poll|Vote)[]|Comment|Option|Poll|Vote $arrayOrObject
 	 */
-	public static function replaceUserId(mixed $arrayOrObject) {
+	public static function replaceUserId($arrayOrObject) {
 		if (is_array($arrayOrObject)) {
 			foreach ($arrayOrObject as $item) {
 				if ($item instanceof Comment || $item instanceof Vote) {