diff --git a/front/core/components/input-number/index.html b/front/core/components/input-number/index.html
index 4d0227333..3bf1e7ebd 100644
--- a/front/core/components/input-number/index.html
+++ b/front/core/components/input-number/index.html
@@ -15,6 +15,7 @@
     <div class="icons pre">
         <vn-icon
             icon="clear"
+            ng-show="::$ctrl.clearDisabled != true"
             translate-attr="{title: 'Clear'}"
             ng-click="$ctrl.onClear($event)">
         </vn-icon>
diff --git a/front/core/components/input-number/index.js b/front/core/components/input-number/index.js
index 6f9fefcd8..8b1341e44 100644
--- a/front/core/components/input-number/index.js
+++ b/front/core/components/input-number/index.js
@@ -85,6 +85,7 @@ ngModule.vnComponent('vnInputNumber', {
         min: '<?',
         max: '<?',
         step: '<?',
-        displayControls: '<?'
+        displayControls: '<?',
+        clearDisabled: '<?'
     }
 });
diff --git a/modules/ticket/front/sale/index.html b/modules/ticket/front/sale/index.html
index 0aa41226b..996135c1e 100644
--- a/modules/ticket/front/sale/index.html
+++ b/modules/ticket/front/sale/index.html
@@ -153,7 +153,8 @@
                             <vn-input-number class="dense"
                                 vn-focus
                                 ng-model="sale.quantity"
-                                on-change="$ctrl.changeQuantity(sale)">
+                                on-change="$ctrl.changeQuantity(sale)"
+                                clear-disabled="true">
                             </vn-input-number>
                         </field>
                     </vn-td-editable>
@@ -177,7 +178,8 @@
                             <vn-textfield class="dense" vn-focus
                                 vn-id="concept"
                                 ng-model="sale.concept"
-                                on-change="$ctrl.updateConcept(sale)">
+                                on-change="$ctrl.updateConcept(sale)"
+                                clear-disabled="true">
                             </vn-textfield>
                         </field>
                     </vn-td-editable>
@@ -251,6 +253,7 @@
                     ng-model="$ctrl.edit.price"
                     step="0.01"
                     on-change="$ctrl.updatePrice()"
+                    clear-disabled="true"
                     suffix="€">
                 </vn-input-number>
                 <div class="simulator">
@@ -283,6 +286,7 @@
                     label="Discount"
                     ng-model="$ctrl.edit.discount"
                     on-change="$ctrl.changeDiscount()"
+                    clear-disabled="true"
                     suffix="%">
                 </vn-input-number>
                 <div class="simulator">
@@ -311,6 +315,7 @@
                     label="Discount"
                     ng-model="$ctrl.edit.discount"
                     on-change="$ctrl.changeMultipleDiscount()"
+                    clear-disabled="true"
                     suffix="%">
                 </vn-input-number>
             </div>