diff --git a/client/components/domains/use-my-domain/utilities/get-domain-name-validation-error-message.js b/client/components/domains/use-my-domain/utilities/get-domain-name-validation-error-message.js
index <HASH>..<HASH> 100644
--- a/client/components/domains/use-my-domain/utilities/get-domain-name-validation-error-message.js
+++ b/client/components/domains/use-my-domain/utilities/get-domain-name-validation-error-message.js
@@ -7,7 +7,7 @@ export function getDomainNameValidationErrorMessage( domainName ) {
 	}
 
 	if (
-		! /^[a-zA-Z0-9][a-zA-Z0-9-]{1,61}(?:[a-zA-Z0-9](?:\.[a-zA-Z0-9][a-zA-Z0-9-]{1,61}[a-zA-Z0-9]))*(?:\.[a-zA-Z]{2,})+$/.test(
+		! /^(([A-Za-z0-9](?:[A-Za-z0-9-]{0,61}[A-Za-z0-9])?)\.)+([A-Za-z0-9](?:[A-Za-z0-9-]{0,61}[A-Za-z0-9])?)$/.test(
 			domainName
 		)
 	) {
Fix use my domain validation (#<I>)