diff --git a/core/Controller/SetupController.php b/core/Controller/SetupController.php
index aa0ce4e1118eb..1ae5849a13a43 100644
--- a/core/Controller/SetupController.php
+++ b/core/Controller/SetupController.php
@@ -115,6 +115,7 @@ private function finishSetup(): void {
 
 		if ($this->setupHelper->shouldRemoveCanInstallFile()) {
 			$this->templateManager->printGuestPage('', 'installation_incomplete');
+			return;
 		}
 
 		header('Location: ' . Server::get(IURLGenerator::class)->getAbsoluteURL('index.php/core/apps/recommended'));