diff --git a/myems-api/README.md b/myems-api/README.md
index 2b279935..126d69d1 100644
--- a/myems-api/README.md
+++ b/myems-api/README.md
@@ -59,7 +59,7 @@ Install and run with waitress:
 ```bash
 pip install waitress
 cd myems\myems-api
-waitress-serve --listen=127.0.0.1:8000 app:api
+waitress-serve --listen=0.0.0.0:8000 app:api
 ```
 
 
diff --git a/myems-api/core/virtualmeter.py b/myems-api/core/virtualmeter.py
index 571dc372..a7ebfd5a 100644
--- a/myems-api/core/virtualmeter.py
+++ b/myems-api/core/virtualmeter.py
@@ -89,7 +89,7 @@ class VirtualMeterCollection:
                     query_variables = (" SELECT v.id, v.name, v.meter_type, v.meter_id "
                                        " FROM tbl_virtual_meters vm, tbl_variables v "
                                        " WHERE vm.id = %s AND v.virtual_meter_id = vm.id "
-                                       " ORDER BY SUBSTRING(v.name,2) + 0 ")
+                                       " ORDER BY SUBSTRING(v.name, 2, 10) + 0 ")
                     cursor.execute(query_variables, (meta_result['id'],))
                     rows_variables = cursor.fetchall()
                     if rows_variables is not None: