diff --git a/test/custom-domain-test.js b/test/custom-domain-test.js
index 5a48150..cacc663 100644
--- a/test/custom-domain-test.js
+++ b/test/custom-domain-test.js
@@ -126,7 +126,7 @@ describe('Custom domain test', function () {
 
     it('can backup the box', function () {
         backupInfo = cloudron.backup();
-        assert.strictEqual(backupInfo.dependsOn.length, 1);
+        assert.strictEqual(backupInfo.dependsOn.length, 2); // one preinstalled app, one test app
     });
 
     it('can restore the box', function () {