diff --git a/Database/DatabasesProviders.php b/Database/DatabasesProviders.php
index a0b543ef..b50b8e82 100644
--- a/Database/DatabasesProviders.php
+++ b/Database/DatabasesProviders.php
@@ -82,7 +82,7 @@ class DatabasesProviders extends Providers
      * @return array
      * @throws \Snowflake\Exception\ConfigException
      */
-    private function _settings($database)
+    private function _settings($database): array
     {
         return [
             'class'       => Connection::class,