diff --git a/src/SoapClient.php b/src/SoapClient.php
index 3ad8186..7da51f2 100644
--- a/src/SoapClient.php
+++ b/src/SoapClient.php
@@ -354,7 +354,7 @@ public function call(string $method, Validator|array $arguments = []): Response
                 }
                 $arguments = $arguments->validated();
             }
-            $arguments = Arr::wrap($arguments);
+            $arguments = [$arguments];
             $result = $this->engine->request($method, $arguments);
             if ($result instanceof ResultProviderInterface) {
                 return $this->buildResponse(Response::fromSoapResponse($result->getResult()));