diff --git a/apps/api/src/lib/common.ts b/apps/api/src/lib/common.ts
index 521e7378d..48f1f97b4 100644
--- a/apps/api/src/lib/common.ts
+++ b/apps/api/src/lib/common.ts
@@ -193,7 +193,7 @@ export async function isDNSValid(hostname: any, domain: string): Promise<any> {
 	const { isIP } = await import('is-ip');
 	const { DNSServers } = await listSettings();
 	if (DNSServers) {
-		dns.setServers([DNSServers]);
+		dns.setServers([...DNSServers.split(',')]);
 	}
 	let resolves = [];
 	try {
@@ -302,7 +302,7 @@ export async function checkDomainsIsValidInDNS({ hostname, fqdn, dualCerts }): P
 
 	const { DNSServers } = await listSettings();
 	if (DNSServers) {
-		dns.setServers([DNSServers]);
+		dns.setServers([...DNSServers.split(',')]);
 	}
 
 	let resolves = [];
diff --git a/apps/api/src/routes/api/v1/settings/handlers.ts b/apps/api/src/routes/api/v1/settings/handlers.ts
index e9d91dd8c..831ce606e 100644
--- a/apps/api/src/routes/api/v1/settings/handlers.ts
+++ b/apps/api/src/routes/api/v1/settings/handlers.ts
@@ -58,7 +58,7 @@ export async function deleteDomain(request: FastifyRequest<DeleteDomain>, reply:
         const { fqdn } = request.body
         const { DNSServers } = await listSettings();
         if (DNSServers) {
-            dns.setServers([DNSServers]);
+            dns.setServers([...DNSServers.split(',')]);
         }
         let ip;
         try {