diff --git a/PLNGatewayPlugin.inc.php b/PLNGatewayPlugin.inc.php
index d8cab06..57a95a2 100644
--- a/PLNGatewayPlugin.inc.php
+++ b/PLNGatewayPlugin.inc.php
@@ -159,7 +159,6 @@ public function fetch($args, $request) {
 			$publications[] = $publication;
 			if (count($publications) == PLN_PLUGIN_PING_ARTICLE_COUNT) break;
 		}
-		$submissions->close();
 		$templateMgr->assign('publications', $publications);
 		$templateMgr->assign('pln_network', $plugin->getSetting($journal->getId(), 'pln_network'));