add ref to MENSHEN_API in help

1 files changed, 1 insertions, 1 deletions

diff --git a/main.go b/main.go
index a0da1da..3a9a0f2 100644
--- a/main.go
+++ b/main.go
@@ -220,7 +220,7 @@ func main() {
 	var port = flag.Int("port", 9001, "port where the service listens on")
 	var metricsPort = flag.Int("metricsPort", 9002, "port where the metrics server listens on")
 	var dbpath = flag.String("geodb", "/var/lib/GeoIP/GeoLite2-City.mmdb", "path to the GeoLite2-City database")
-	var api = flag.String("api", "", "API to fetch eip-service.json from (default: black.riseup.net)")
+	var api = flag.String("api", "", "API to fetch eip-service.json from (default: black.riseup.net). MENSHEN_API environment variable can be setup instead.")
 	var notls = flag.Bool("notls", false, "disable TLS on the service")
 	var key = flag.String("server_key", "", "path to the key file for TLS")
 	var crt = flag.String("server_crt", "", "path to the cert file for TLS")