diff --git a/src/reverseproxy.js b/src/reverseproxy.js
index 2d80f1b68..01d4b9ae4 100644
--- a/src/reverseproxy.js
+++ b/src/reverseproxy.js
@@ -448,13 +448,13 @@ async function ensureCertificate(fqdn, domainObject, options, auditSource) {
     await safe(eventlog.add(renewal ? eventlog.ACTION_CERTIFICATE_RENEWAL : eventlog.ACTION_CERTIFICATE_NEW, auditSource, { domain: fqdn, errorMessage: renewError?.message || '' }));
 }
 
-async function writeDashboardNginxConfig(fqdn, certificatePath) {
-    assert.strictEqual(typeof fqdn, 'string');
+async function writeDashboardNginxConfig(vhost, certificatePath) {
+    assert.strictEqual(typeof vhost, 'string');
     assert.strictEqual(typeof certificatePath, 'object');
 
     const data = {
         sourceDir: path.resolve(__dirname, '..'),
-        vhost: fqdn,
+        vhost,
         hasIPv6: sysinfo.hasIPv6(),
         endpoint: 'dashboard',
         certFilePath: certificatePath.certFilePath,
@@ -464,7 +464,7 @@ async function writeDashboardNginxConfig(fqdn, certificatePath) {
         ocsp: await isOcspEnabled(certificatePath.certFilePath)
     };
     const nginxConf = ejs.render(NGINX_APPCONFIG_EJS, data);
-    const nginxConfigFilename = path.join(paths.NGINX_APPCONFIG_DIR, `${fqdn}.conf`);
+    const nginxConfigFilename = path.join(paths.NGINX_APPCONFIG_DIR, `${vhost}.conf`);
 
     if (!safe.fs.writeFileSync(nginxConfigFilename, nginxConf)) throw new BoxError(BoxError.FS_ERROR, safe.error);
 }
@@ -481,15 +481,15 @@ async function writeDashboardConfig(domainObject) {
     await reload();
 }
 
-async function writeAppNginxConfig(app, fqdn, type, certificatePath) {
+async function writeAppNginxConfig(app, vhost, type, certificatePath) {
     assert.strictEqual(typeof app, 'object');
-    assert.strictEqual(typeof fqdn, 'string');
+    assert.strictEqual(typeof vhost, 'string');
     assert.strictEqual(typeof type, 'string');
     assert.strictEqual(typeof certificatePath, 'object');
 
     const data = {
         sourceDir: path.resolve(__dirname, '..'),
-        vhost: fqdn,
+        vhost,
         hasIPv6: sysinfo.hasIPv6(),
         ip: null,
         port: null,
@@ -535,7 +535,7 @@ async function writeAppNginxConfig(app, fqdn, type, certificatePath) {
             data.port = app.manifest.httpPort;
         } else if (type === apps.LOCATION_TYPE_SECONDARY) {
             data.ip = app.containerIp;
-            const secondaryDomain = app.secondaryDomains.find(sd => sd.fqdn === fqdn);
+            const secondaryDomain = app.secondaryDomains.find(sd => sd.fqdn === vhost);
             data.port = app.manifest.httpPorts[secondaryDomain.environmentVariable].containerPort;
         }
     } else if (type === apps.LOCATION_TYPE_REDIRECT) {
@@ -545,8 +545,8 @@ async function writeAppNginxConfig(app, fqdn, type, certificatePath) {
     }
 
     const nginxConf = ejs.render(NGINX_APPCONFIG_EJS, data);
-    const filename = path.join(paths.NGINX_APPCONFIG_DIR, `${app.id}-${fqdn.replace('*', '_')}.conf`);
-    debug(`writeAppNginxConfig: writing config for "${fqdn}" to ${filename} with options ${JSON.stringify(data)}`);
+    const filename = path.join(paths.NGINX_APPCONFIG_DIR, `${app.id}-${vhost.replace('*', '_')}.conf`);
+    debug(`writeAppNginxConfig: writing config for "${vhost}" to ${filename} with options ${JSON.stringify(data)}`);
     if (!safe.fs.writeFileSync(filename, nginxConf)) {
         debug(`Error creating nginx config for "${app.fqdn}" : ${safe.error.message}`);
         throw new BoxError(BoxError.FS_ERROR, safe.error);