diff --git a/classes/api.php b/classes/api.php
index 539aa334b..213ccb7e6 100755
--- a/classes/api.php
+++ b/classes/api.php
@@ -633,7 +633,7 @@ class API extends Handler {
 	 * @param string|int $feed_id
 	 * @return array{0: array<int, array<string, mixed>>, 1: array<string, mixed>} $headlines, $headlines_header
 	 */
-	private static function _api_get_headlines(mixed $feed_id, int $limit, int $offset,
+	private static function _api_get_headlines($feed_id, int $limit, int $offset,
 				string $filter, bool $is_cat, bool $show_excerpt, bool $show_content, ?string $view_mode, string $order,
 				bool $include_attachments, int $since_id, string $search = "", bool $include_nested = false,
 				bool $sanitize_content = true, bool $force_update = false, int $excerpt_length = 100, ?int $check_first_id = null,
diff --git a/classes/feeds.php b/classes/feeds.php
index af2ee1a8c..a9afb70f2 100755
--- a/classes/feeds.php
+++ b/classes/feeds.php
@@ -21,7 +21,7 @@ class Feeds extends Handler_Protected {
 	 * @param string|int $feed
 	 * @return array{0: array<int, int>, 1: int, 2: int, 3: bool, 4: array<string, mixed>} $topmost_article_ids, $headlines_count, $feed, $disable_cache, $reply
 	 */
-	private function _format_headlines_list(mixed $feed, string $method, string $view_mode, int $limit, bool $cat_view,
+	private function _format_headlines_list($feed, string $method, string $view_mode, int $limit, bool $cat_view,
 					int $offset, string $override_order, bool $include_children, ?int $check_first_id = null,
 					bool $skip_first_id_check, string $order_by): array {
 
@@ -1217,7 +1217,7 @@ class Feeds extends Handler_Protected {
 	/**
 	 * @param string|int $id
 	 */
-	static function _get_title(mixed $id, bool $cat = false): string {
+	static function _get_title($id, bool $cat = false): string {
 		$pdo = Db::pdo();
 
 		if ($cat) {