diff --git a/src/Dumper/ProjectDumper.php b/src/Dumper/ProjectDumper.php
index e808f10..2ee518d 100644
--- a/src/Dumper/ProjectDumper.php
+++ b/src/Dumper/ProjectDumper.php
@@ -17,7 +17,7 @@ public function dump(ProjectInterface $project, string $projectDir)
     {
         @mkdir($projectDir, 0777, true);
         foreach ($project->apps() as $app) {
-            $appDir = $projectDir.DIRECTORY_SEPARATOR.$app->name().'.yaml';
+            $appDir = $projectDir.DIRECTORY_SEPARATOR.$app->name();
             $this->appDumper->dump($app, $appDir);
         }
     }