diff --git a/scripts/graphioGremlin.js b/scripts/graphioGremlin.js
index 2184ffa..cbcb803 100644
--- a/scripts/graphioGremlin.js
+++ b/scripts/graphioGremlin.js
@@ -216,10 +216,11 @@ var graphioGremlin = (function(){
 		let server_port = $('#server_port').val();
 		let COMMUNICATION_PROTOCOL = $('#server_protocol').val();
 			if (COMMUNICATION_PROTOCOL == 'REST'){
+				let server_url = ""
 				if(REST_USE_HTTPS){
-					let server_url = "https://"+server_address+":"+server_port;
+					server_url = "https://"+server_address+":"+server_port;
 				} else{
-					let server_url = "http://"+server_address+":"+server_port;
+					server_url = "http://"+server_address+":"+server_port;
 				}
 				run_ajax_request(gremlin_query,server_url,query_type,active_node,message,callback);
 			}