diff --git a/src/config.ts b/src/config.ts
index 128be15..51a9cbe 100644
--- a/src/config.ts
+++ b/src/config.ts
@@ -55,10 +55,4 @@ config.load({
   argv: true,
 });
 
-for (const setting of ["domain"]) {
-  if (!config.get(setting)) {
-    errorExit(`Required config option ${setting} not set`);
-  }
-}
-
 export default config;
diff --git a/src/modules/dns.ts b/src/modules/dns.ts
index 770cdca..5249519 100644
--- a/src/modules/dns.ts
+++ b/src/modules/dns.ts
@@ -36,6 +36,10 @@ async function ipUpdate() {
 }
 
 export async function start() {
+  if (!config.str("domain")) {
+    return;
+  }
+
   const swarm = getSwarm();
 
   await ipUpdate();