diff --git a/config.js b/config.js
index 141223a..0e3405c 100644
--- a/config.js
+++ b/config.js
@@ -13,7 +13,10 @@ Object.keys( defaultConfig ).forEach( function(v){
 });
 
 
-config.LOCAL_REGISTRY = 'localhost:' + config.PORT;
+if( !config.LOCAL_REGISTRY ){
+  config.LOCAL_REGISTRY = 'localhost:' + config.PORT;
+}
+
 if( config.ENABLE_NPM_FAILOVER == 'false' ){
   config.ENABLE_NPM_FAILOVER = false;
 }