diff --git a/core/imageboard/search.php b/core/imageboard/search.php
index 7e153fe8..b71803fc 100644
--- a/core/imageboard/search.php
+++ b/core/imageboard/search.php
@@ -146,7 +146,7 @@ class Search
     /**
      * Count the number of image results for a given search
      *
-     * @param string[] $tags
+     * @param list<string> $tags
      */
     public static function count_images(array $tags = []): int
     {
diff --git a/ext/danbooru_api/main.php b/ext/danbooru_api/main.php
index e950ee2a..d29a3eee 100644
--- a/ext/danbooru_api/main.php
+++ b/ext/danbooru_api/main.php
@@ -197,6 +197,7 @@ class DanbooruApi extends Extension
             $tags = array_filter($tags, static function ($element) {
                 return $element !== "*";
             });
+            $tags = array_values($tags); // reindex array because count_images() expects a 0-based array
             $count = Search::count_images($tags);
             $results = Search::find_images(max($start, 0), min($limit, 100), $tags);
         }