diff --git a/src/Adapter/Mysql.php b/src/Adapter/Mysql.php
index 7004d97..5d464fb 100644
--- a/src/Adapter/Mysql.php
+++ b/src/Adapter/Mysql.php
@@ -48,7 +48,7 @@ public function getOptions(Config $config)
                 defined('PDO::MYSQL_ATTR_SSL_VERIFY_SERVER_CERT')
                 && isset($config->ssl_do_not_verify_server_cert)
             ) {
-                $options[PDO::MYSQL_ATTR_SSL_VERIFY_SERVER_CERT] = (bool) $config->ssl_do_not_verify_server_cert;
+                $options[PDO::MYSQL_ATTR_SSL_VERIFY_SERVER_CERT] = false;
             }
         }