diff --git a/classes/migration/upgrade/PKPv3_3_0UpgradeMigration.inc.php b/classes/migration/upgrade/PKPv3_3_0UpgradeMigration.inc.php
index e92a984c713..611810f0dc6 100755
--- a/classes/migration/upgrade/PKPv3_3_0UpgradeMigration.inc.php
+++ b/classes/migration/upgrade/PKPv3_3_0UpgradeMigration.inc.php
@@ -420,7 +420,7 @@ private function _migrateSubmissionFiles() {
 
 		// Postgres leaves the old file_id autoincrement sequence around, so
 		// we delete it and apply a new sequence.
-		if (Config::getVar('database', 'driver') === 'postgres9') {
+		if (substr(Config::getVar('database', 'driver'), 0, strlen('postgres')) === 'postgres') {
 			Capsule::statement('DROP SEQUENCE submission_files_file_id_seq CASCADE');
 			Capsule::schema()->table('submission_files', function (Blueprint $table) {
 				$table->bigIncrements('submission_file_id')->change();