diff --git a/src/Filter/InArrayFilter.php b/src/Filter/InArrayFilter.php
index f032d79..c75b04f 100644
--- a/src/Filter/InArrayFilter.php
+++ b/src/Filter/InArrayFilter.php
@@ -116,7 +116,7 @@ final class InArrayFilter extends AbstractFilter
 
             $description[$property.'[]'] = [
                 'property' => $property,
-                'type' => Type::BUILTIN_TYPE_ARRAY,
+                'type' => Type::BUILTIN_TYPE_STRING,
                 'required' => false,
                 'is_collection' => true,
             ];