From 9c4899ad0f55309ccd70ece6e7ee8b8d27af93c8 Mon Sep 17 00:00:00 2001
From: Fernandez Ludovic <ldez@users.noreply.github.com>
Date: Mon, 30 Sep 2024 21:57:33 +0200
Subject: [PATCH] review

---
 challenge/dns01/nameserver.go | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/challenge/dns01/nameserver.go b/challenge/dns01/nameserver.go
index ddf0b16105..a2149b3f98 100644
--- a/challenge/dns01/nameserver.go
+++ b/challenge/dns01/nameserver.go
@@ -16,9 +16,7 @@ import (
 
 const defaultResolvConf = "/etc/resolv.conf"
 
-var (
-	fqdnSoaCache = &sync.Map{}
-)
+var fqdnSoaCache = &sync.Map{}
 
 var defaultNameservers = []string{
 	"google-public-dns-a.google.com:53",
@@ -50,7 +48,7 @@ func (cache *soaCacheEntry) isExpired() bool {
 
 // ClearFqdnCache clears the cache of fqdn to zone mappings. Primarily used in testing.
 func ClearFqdnCache() {
-	fqdnSoaCache = &sync.Map{}
+	fqdnSoaCache.Clear()
 }
 
 func AddDNSTimeout(timeout time.Duration) ChallengeOption {