diff --git a/lib/Doctrine/DBAL/Driver/OCI8/OCI8Connection.php b/lib/Doctrine/DBAL/Driver/OCI8/OCI8Connection.php
index 9c759e4ec82..fe8b6444a9a 100644
--- a/lib/Doctrine/DBAL/Driver/OCI8/OCI8Connection.php
+++ b/lib/Doctrine/DBAL/Driver/OCI8/OCI8Connection.php
@@ -142,7 +142,7 @@ public function exec(string $statement) : int
     public function lastInsertId(string $name = null) : string
     {
         if ($name === null) {
-            return false;
+            throw new OCI8Exception('A sequence name must be provided.');
         }
 
         $sql    = 'SELECT ' . $name . '.CURRVAL FROM DUAL';
diff --git a/tests/Doctrine/Tests/DBAL/Functional/WriteTest.php b/tests/Doctrine/Tests/DBAL/Functional/WriteTest.php
index e5de4046031..dd23771b61e 100644
--- a/tests/Doctrine/Tests/DBAL/Functional/WriteTest.php
+++ b/tests/Doctrine/Tests/DBAL/Functional/WriteTest.php
@@ -3,6 +3,7 @@
 namespace Doctrine\Tests\DBAL\Functional;
 
 use DateTime;
+use Doctrine\DBAL\Driver\OCI8\OCI8Exception;
 use Doctrine\DBAL\ParameterType;
 use Doctrine\DBAL\Schema\AbstractSchemaManager;
 use Doctrine\DBAL\Schema\Sequence;
@@ -189,7 +190,10 @@ public function testLastInsertIdNoSequenceGiven()
             $this->markTestSkipped("Test only works consistently on platforms that support sequences and don't support identity columns.");
         }
 
-        self::assertSame('', $this->connection->lastInsertId(null));
+        $this->expectException(OCI8Exception::class);
+        $this->expectExceptionMessage('A sequence name must be provided.');
+
+        $this->connection->lastInsertId(null);
     }
 
     /**