diff --git a/src/dns/cloudflare.js b/src/dns/cloudflare.js
index ac5740420..94bf00d42 100644
--- a/src/dns/cloudflare.js
+++ b/src/dns/cloudflare.js
@@ -289,7 +289,7 @@ function verifyDnsConfig(domainObject, callback) {
     if (dnsConfig.tokenType !== 'GlobalApiKey' && dnsConfig.tokenType !== 'ApiToken')  return callback(new BoxError(BoxError.BAD_FIELD, 'tokenType is required', { field: 'tokenType' }));
 
     if (dnsConfig.tokenType === 'GlobalApiKey') {
-        if ('email' in dnsConfig && typeof dnsConfig.email !== 'string') return callback(new BoxError(BoxError.BAD_FIELD, 'email must be a non-empty string', { field: 'email' }));
+        if (typeof dnsConfig.email !== 'string') return callback(new BoxError(BoxError.BAD_FIELD, 'email must be a non-empty string', { field: 'email' }));
     }
 
     const ip = '127.0.0.1';