diff --git a/lib/Doctrine/DBAL/Connection.php b/lib/Doctrine/DBAL/Connection.php
index 78bc38023b0..d514557ff79 100644
--- a/lib/Doctrine/DBAL/Connection.php
+++ b/lib/Doctrine/DBAL/Connection.php
@@ -1429,7 +1429,6 @@ public function rollbackSavepoint($savepoint)
     public function getWrappedConnection()
     {
         $this->connect();
-        assert($this->_conn instanceof DriverConnection);
 
         return $this->_conn;
     }
diff --git a/tests/Doctrine/Tests/DBAL/Functional/ConnectionTest.php b/tests/Doctrine/Tests/DBAL/Functional/ConnectionTest.php
index c8684a60498..8e6dc21222b 100644
--- a/tests/Doctrine/Tests/DBAL/Functional/ConnectionTest.php
+++ b/tests/Doctrine/Tests/DBAL/Functional/ConnectionTest.php
@@ -12,6 +12,7 @@
 use Doctrine\Tests\DbalFunctionalTestCase;
 use Error;
 use Exception;
+use PDO;
 use RuntimeException;
 use Throwable;
 use function in_array;
@@ -311,4 +312,16 @@ public function testDeterminesDatabasePlatformWhenConnectingToNonExistentDatabas
 
         $connection->close();
     }
+
+    /**
+     * @requires extension pdo_sqlite
+     */
+    public function testUserProvidedPDOConnection() : void
+    {
+        self::assertTrue(
+            DriverManager::getConnection([
+                'pdo' => new PDO('sqlite::memory:'),
+            ])->ping()
+        );
+    }
 }