diff --git a/lib/publish-gh-pages.js b/lib/publish-gh-pages.js
index e9555965a6787..95b2639419acd 100755
--- a/lib/publish-gh-pages.js
+++ b/lib/publish-gh-pages.js
@@ -35,9 +35,10 @@ const USE_SSH = process.env.USE_SSH;
 // github.io indicates organization repos that deploy via master. All others use gh-pages.
 const DEPLOYMENT_BRANCH =
   PROJECT_NAME.indexOf('.github.io') !== -1 ? 'master' : 'gh-pages';
-// for github enterprise support, should be possible to specify a different host than github.com
+const GITHUB_DOMAIN = 'github.com';
+// For GitHub enterprise, allow specifying a different host.
 const GITHUB_HOST =
-  process.env.GITHUB_HOST || siteConfig.githubHost || 'github.com';
+  process.env.GITHUB_HOST || siteConfig.githubHost || GITHUB_DOMAIN;
 
 if (!ORGANIZATION_NAME) {
   shell.echo(
@@ -154,7 +155,7 @@ fs.copy(
     } else if (commitResults.code === 0) {
       // The commit might return a non-zero value when site is up to date.
       const websiteURL =
-        GITHUB_HOST === 'github.com'
+        GITHUB_HOST === GITHUB_DOMAIN
           ? `https://${ORGANIZATION_NAME}.github.io/${PROJECT_NAME}` // gh-pages hosted repo
           : `https://${GITHUB_HOST}/pages/${ORGANIZATION_NAME}/${PROJECT_NAME}`; // GitHub enterprise hosting.
       shell.echo(`Website is live at: ${websiteURL}`);