diff --git a/src/reverseproxy.js b/src/reverseproxy.js
index 8950573a4..b8e6b6ae0 100644
--- a/src/reverseproxy.js
+++ b/src/reverseproxy.js
@@ -117,7 +117,9 @@ function providerMatchesSync(domainObject, certFilePath, apiOptions) {
 
     const mismatch = issuerMismatch || wildcardMismatch;
 
-    debug(`providerMatchesSync: ${certFilePath} subject=${subject} domain=${domain} issuer=${issuer} wildcard=${isWildcardCert}/${apiOptions.wildcard} prod=${isLetsEncryptProd}/${apiOptions.prod} match=${!mismatch}`);
+    debug(`providerMatchesSync: ${certFilePath} subject=${subject} domain=${domain} issuer=${issuer} `
+        + `wildcard=${isWildcardCert}/${apiOptions.wildcard} prod=${isLetsEncryptProd}/${apiOptions.prod} `
+        + `issuerMismatch=${issuerMismatch} wildcardMismatch=${wildcardMismatch} match=${!mismatch}`);
 
     return !mismatch;
 }
@@ -334,7 +336,7 @@ function ensureCertificate(vhost, domain, auditSource, callback) {
                     debug(`ensureCertificate: ${vhost} certificate already exists at ${currentBundle.keyFilePath}`);
 
                     if (!isExpiringSync(currentBundle.certFilePath, 24 * 30) && providerMatchesSync(domainObject, currentBundle.certFilePath, apiOptions)) return callback(null, currentBundle, { renewed: false });
-                    debug(`ensureCertificate: ${vhost} cert require renewal`);
+                    debug(`ensureCertificate: ${vhost} cert requires renewal`);
                 } else {
                     debug(`ensureCertificate: ${vhost} cert does not exist`);
                 }