diff --git a/src/Codeception/Lib/Driver/Db.php b/src/Codeception/Lib/Driver/Db.php
index b69017ef..fdcdb4e4 100755
--- a/src/Codeception/Lib/Driver/Db.php
+++ b/src/Codeception/Lib/Driver/Db.php
@@ -91,7 +91,7 @@ public function __construct(string $dsn, string $user = null, string $password =
 
     public function __destruct()
     {
-        if ($this->dbh->inTransaction()) {
+        if ($this->dbh !== null && $this->dbh->inTransaction()) {
             $this->dbh->rollBack();
         }