diff --git a/src/reverseproxy.js b/src/reverseproxy.js
index b8e6b6ae0..d1eaf3955 100644
--- a/src/reverseproxy.js
+++ b/src/reverseproxy.js
@@ -109,7 +109,7 @@ function providerMatchesSync(domainObject, certFilePath, apiOptions) {
     const domain = subject.substr(subject.indexOf('=') + 1).trim(); // subject can be /CN=, CN=, CN = and other forms
     const issuer = subjectAndIssuer.match(/^issuer=(.*)$/m)[1];
     const isWildcardCert = domain.includes('*');
-    const isLetsEncryptProd = issuer.includes('Let\'s Encrypt Authority');
+    const isLetsEncryptProd = issuer.includes('Let\'s Encrypt');
 
     const issuerMismatch = (apiOptions.prod && !isLetsEncryptProd) || (!apiOptions.prod && isLetsEncryptProd);
     // bare domain is not part of wildcard SAN