diff --git a/lib/private/App/AppStore/Fetcher/AppFetcher.php b/lib/private/App/AppStore/Fetcher/AppFetcher.php
index d2c98c4afc965..5414358250fc4 100644
--- a/lib/private/App/AppStore/Fetcher/AppFetcher.php
+++ b/lib/private/App/AppStore/Fetcher/AppFetcher.php
@@ -53,7 +53,7 @@ protected function fetch($ETag, $content, $allowUnstable = false) {
 		/** @var mixed[] $response */
 		$response = parent::fetch($ETag, $content);
 
-		if (empty($response) || $response['data'] === null) {
+		if (!isset($response['data']) || $response['data'] === null) {
 			$this->logger->warning('Response from appstore is invalid, apps could not be retrieved. Try again later.', ['app' => 'appstoreFetcher']);
 			return [];
 		}