diff --git a/32-platform/platform/placeholder/startup.go b/32-platform/platform/placeholder/startup.go
index 43e7c12..dbdaffa 100644
--- a/32-platform/platform/placeholder/startup.go
+++ b/32-platform/platform/placeholder/startup.go
@@ -25,8 +25,7 @@ func createPipeline() pipeline.RequestPipeline {
 func Start() {
 	results, err := services.Call(http.Serve, createPipeline())
 	if err == nil {
-		wg := results[0].(*sync.WaitGroup)
-		wg.Wait()
+		results[0].(*sync.WaitGroup).Wait()
 	} else {
 		panic(err)
 	}