diff --git a/src/server/models/circuit.js b/src/server/models/circuit.js
index 18aa7b1..ab89056 100755
--- a/src/server/models/circuit.js
+++ b/src/server/models/circuit.js
@@ -16,11 +16,13 @@ mongoose.plugin(schema => {
 const CircuitSchema = new Schema({
   _id: {
     type: Number,
+    unique: true,
   },
-  nome_circuito: {
+  name: {
     type: String,
+    unique: true,
   },
-  sotto_nome: {
+  subname: {
     type: String,
   },
   descr: {
@@ -45,11 +47,11 @@ const CircuitSchema = new Schema({
     type: String,
     maxlength: 20,
   },
-  simbolo: {
+  symbol: {
     type: String,
     maxlength: 3,
   },
-  sigla: {
+  abbrev: {
     type: String,
     maxlength: 3,
   },