diff --git a/node_modules/c9/hostname_test.js b/node_modules/c9/hostname_test.js
index face783e..1917ff93 100644
--- a/node_modules/c9/hostname_test.js
+++ b/node_modules/c9/hostname_test.js
@@ -23,5 +23,6 @@ describe(__filename, function() {
         assertServerName(hostname.parse("newclient-gce-eu-prod-d4fg"), "newclient", "gce", "eu", "d4fg", "prod");
         assertServerName(hostname.parse("ide-old-gce-usw-02-prod"), "ide-old", "gce", "usw", "02", "prod");
         assertServerName(hostname.parse("docker-premium-eu-115-prod"), "docker", "premium", "eu", "115", "prod");
+        assertServerName(hostname.parse("docker-c9admin-usw-389-prod"), "docker", "c9admin", "usw", "389", "prod");
     });
 });