diff --git a/lib/alias.js b/lib/alias.js
index 104de7f..fd3236f 100644
--- a/lib/alias.js
+++ b/lib/alias.js
@@ -366,7 +366,7 @@ export default class Alias extends Now {
       }
 
       for (const ip of ips) {
-        if (targets.indexOf(ip) !== -1) {
+        if (targets.indexOf(ip) === -1) {
           const err = new Error(`The domain ${domain} has an A record ${chalk.bold(ip)} that doesn't resolve to ${chalk.bold(chalk.underline('alias.zeit.co'))}.\n> ` + DOMAIN_VERIFICATION_ERROR)
           err.ip = ip
           err.userError = true