diff --git a/main.go b/main.go
index a8d3f1b6f..f061a23a9 100644
--- a/main.go
+++ b/main.go
@@ -38,6 +38,7 @@ func main() {
 	flagSet.Var(&skipAuthRegex, "skip-auth-regex", "bypass authentication for requests path's that match (may be given multiple times)")
 
 	flagSet.Var(&emailDomains, "email-domain", "authenticate emails with the specified domain (may be given multiple times). Use * to authenticate any email")
+	flagSet.String("github-base-url", "", "github base url to configure github enterprise endpoint")
 	flagSet.String("github-org", "", "restrict logins to members of this organisation")
 	flagSet.String("github-team", "", "restrict logins to members of this team")
 	flagSet.Var(&googleGroups, "google-group", "restrict logins to members of this google group (may be given multiple times).")
diff --git a/options.go b/options.go
index e624f142d..99038c630 100644
--- a/options.go
+++ b/options.go
@@ -28,7 +28,7 @@ type Options struct {
 	EmailDomains             []string `flag:"email-domain" cfg:"email_domains"`
 	GitHubOrg                string   `flag:"github-org" cfg:"github_org"`
 	GitHubTeam               string   `flag:"github-team" cfg:"github_team"`
-	GitHubBaseUrl			 string	  `flag:"github-base-url" cfg:"github_base_url"`
+	GitHubBaseUrl            string	  `flag:"github-base-url" cfg:"github_base_url"`
 	GoogleGroups             []string `flag:"google-group" cfg:"google_group"`
 	GoogleAdminEmail         string   `flag:"google-admin-email" cfg:"google_admin_email"`
 	GoogleServiceAccountJSON string   `flag:"google-service-account-json" cfg:"google_service_account_json"`