From 3e26b30ae8b2cc31134cb0288f513624d743c7d4 Mon Sep 17 00:00:00 2001
From: Leon Klingele <git@leonklingele.de>
Date: Sat, 7 Jan 2017 19:14:31 +0100
Subject: [PATCH] Singleton: Do not require sync package

---
 creational/singleton.md | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/creational/singleton.md b/creational/singleton.md
index fa6c463..345e101 100644
--- a/creational/singleton.md
+++ b/creational/singleton.md
@@ -9,14 +9,12 @@ package singleton
 
 type singleton map[string]string
 
-var once sync.Once
-
 var instance singleton
 
 func New() singleton {
-	once.Do(func() {
+	if instance == nil {
 		instance = make(singleton)
-	})
+	}
 
 	return instance
 }