diff --git a/src/reverseproxy.js b/src/reverseproxy.js
index 38a68a6a8..33091ec52 100644
--- a/src/reverseproxy.js
+++ b/src/reverseproxy.js
@@ -429,10 +429,9 @@ async function ensureCertificate(vhost, domain, auditSource) {
     return { bundle: getFallbackCertificatePathSync(domain), renewed: false };
 }
 
-async function writeDashboardNginxConfig(bundle, configFileName, vhost) {
-    assert.strictEqual(typeof bundle, 'object');
-    assert.strictEqual(typeof configFileName, 'string');
+async function writeDashboardNginxConfig(vhost, bundle) {
     assert.strictEqual(typeof vhost, 'string');
+    assert.strictEqual(typeof bundle, 'object');
 
     const data = {
         sourceDir: path.resolve(__dirname, '..'),
@@ -446,7 +445,7 @@ async function writeDashboardNginxConfig(bundle, configFileName, vhost) {
         ocsp: await isOcspEnabled(bundle.certFilePath)
     };
     const nginxConf = ejs.render(NGINX_APPCONFIG_EJS, data);
-    const nginxConfigFilename = path.join(paths.NGINX_APPCONFIG_DIR, configFileName);
+    const nginxConfigFilename = path.join(paths.NGINX_APPCONFIG_DIR, `${vhost}.conf`);
 
     if (!safe.fs.writeFileSync(nginxConfigFilename, nginxConf)) throw new BoxError(BoxError.FS_ERROR, safe.error);
 
@@ -459,12 +458,10 @@ async function writeDashboardConfig(domain) {
     debug(`writeDashboardConfig: writing admin config for ${domain}`);
 
     const domainObject = await domains.get(domain);
-
     const dashboardFqdn = dns.fqdn(constants.DASHBOARD_LOCATION, domainObject);
-
     const bundle = await getCertificatePath(dashboardFqdn, domainObject.domain);
 
-    await writeDashboardNginxConfig(bundle, `${dashboardFqdn}.conf`, dashboardFqdn);
+    await writeDashboardNginxConfig(dashboardFqdn, bundle);
 }
 
 async function writeAppNginxConfig(app, fqdn, bundle) {
@@ -675,7 +672,7 @@ async function renewCerts(options, auditSource, progressCallback) {
 
         // reconfigure since the cert changed
         if (appDomain.type === 'webadmin' || appDomain.type === 'webadmin+mail') {
-            await writeDashboardNginxConfig(bundle, `${settings.dashboardFqdn()}.conf`, settings.dashboardFqdn());
+            await writeDashboardNginxConfig(settings.dashboardFqdn(), bundle);
         } else if (appDomain.type === apps.SUBDOMAIN_TYPE_PRIMARY) {
             await writeAppNginxConfig(appDomain.app, appDomain.fqdn, bundle);
         } else if (appDomain.type === apps.SUBDOMAIN_TYPE_REDIRECT) {