diff --git a/front/core/components/check/check.html b/front/core/components/check/check.html
index 59fbd1192..c2d16005a 100644
--- a/front/core/components/check/check.html
+++ b/front/core/components/check/check.html
@@ -2,8 +2,8 @@
 	aria-label="Checkbox 1"
 	md-indeterminate="$ctrl.isIntermediate"
 	ng-disabled="$ctrl.disabled"
-	ng-checked="$ctrl.checkValue"
-	ng-model="$ctrl.checkValue">
+	ng-checked="$ctrl.isChecked"
+	ng-model="$ctrl.model">
 	<span translate>{{::$ctrl.label}}</span>
 </md-checkbox>
 <i class="material-icons"
diff --git a/front/core/components/check/check.js b/front/core/components/check/check.js
index 63d049264..473128a27 100644
--- a/front/core/components/check/check.js
+++ b/front/core/components/check/check.js
@@ -9,61 +9,51 @@ export default class Controller extends Component {
         this.info = $attrs.info || null;
     }
 
-    set checkValue(value) {
-        this.checkIntermediate();
-        if (this.isIntermediate)
-            value = false;
-
-        this._field = value;
-
-        if (typeof this._checkValue === 'boolean')
-            this.emit('change', {value: this.field});
-
-        this._checkValue = value;
+    get model() {
+        return this._model;
     }
 
-    get checkValue() {
-        return this._checkValue;
+    set model(value) {
+        if (value === null) return;
+
+        if (this.model === true)
+            value = false;
+        else if (this.model === false && this.tripleState)
+            value = null;
+
+        this.emit('change', {value});
+
+        this._model = value;
     }
 
     set field(value) {
-        this.checkValue = value;
+        if (typeof value === 'number')
+            value = Boolean(value);
+
+        this._model = value;
     }
 
     get field() {
-        if (!this._field && this.isIntermediate)
-            return null;
-
-        return this._field;
+        return this._model;
     }
 
-    set tripleState(value) {
-        this._tripleState = value;
-        this.checkIntermediate();
+    get isIntermediate() {
+        return this.intermediate
+            || this.model === null
+            || this.model === undefined;
     }
 
-    get tripleState() {
-        return this._tripleState;
-    }
-
-    checkIntermediate() {
-        if ((this.intermediate || (!this._field && this.tripleState)) && !this.isIntermediate) {
-            this.isIntermediate = true;
-            return;
-        }
-
-        if (!this.intermediate)
-            this.isIntermediate = false;
+    get isChecked() {
+        return this.checked || this.model === true;
     }
 }
+
 Controller.$inject = ['$element', '$scope', '$attrs'];
 
 ngModule.component('vnCheck', {
     template: require('./check.html'),
     controller: Controller,
-    require: {
-        model: '?ngModel'
-    },
+
     bindings: {
         field: '=?',
         label: '@?',
diff --git a/modules/ticket/front/sale/editDiscount.spec.js b/modules/ticket/front/sale/editDiscount.spec.js
index 70ca327f8..2fef13106 100644
--- a/modules/ticket/front/sale/editDiscount.spec.js
+++ b/modules/ticket/front/sale/editDiscount.spec.js
@@ -21,7 +21,7 @@ describe('Ticket', () => {
             $state.params.id = 1;
             controller = $componentController('vnTicketSaleEditDiscount', {$scope, $state});
             controller._edit = [{id: 3, discount: 15}];
-            controller.hide = () => {};
+            controller.onHide = () => {};
         }));
 
         describe('edit() setter', () => {