diff --git a/src/Adapter/Driver/Pdo/Connection.php b/src/Adapter/Driver/Pdo/Connection.php
index 196aade6fa..5f2f6174d0 100644
--- a/src/Adapter/Driver/Pdo/Connection.php
+++ b/src/Adapter/Driver/Pdo/Connection.php
@@ -171,7 +171,6 @@ public function connect()
                     if (strpos($value, 'pdo') === 0) {
                         $pdoDriver = str_replace(['-', '_', ' '], '', $value);
                         $pdoDriver = substr($pdoDriver, 3) ?: '';
-                        $pdoDriver = strtolower($pdoDriver);
                     }
                     break;
                 case 'pdodriver':