diff --git a/lib/private/Installer.php b/lib/private/Installer.php
index 3ddef99c64..4bdaa31e09 100644
--- a/lib/private/Installer.php
+++ b/lib/private/Installer.php
@@ -395,14 +395,14 @@ class Installer {
 			return false;
 		}
 
-		if ($this->apps === null) {
-			$apps = $this->appFetcher->get();
-		}
-
 		if ($this->isInstalledFromGit($appId) === true) {
 			return false;
 		}
 
+		if ($this->apps === null) {
+			$apps = $this->appFetcher->get();
+		}
+
 		foreach($apps as $app) {
 			if($app['id'] === $appId) {
 				$currentVersion = OC_App::getAppVersion($appId);