diff --git a/addons/web/static/src/js/view_form.js b/addons/web/static/src/js/view_form.js
index 3f6b0b66aad..a15bfb90276 100644
--- a/addons/web/static/src/js/view_form.js
+++ b/addons/web/static/src/js/view_form.js
@@ -5124,13 +5124,9 @@ instance.web.form.FieldMany2ManyBinaryMultiFiles = instance.web.form.AbstractFie
         // TODO : activate send on wizard and form
 
         if (result.error || !result.id ) {
-
-            console.log(result.error);
-            this.do_warn(result.error.split('---')[0], result.error.split('---')[1]);
+            this.do_warn( instance.web.qweb.render('message_error_uploading'), result.error);
             files = _.filter(files, function (val) { return !val.upload; });
-            
         } else {
-
             for(var i in files){
                 if(files[i].filename == result.filename && files[i].upload) {
                     files[i] = {
@@ -5141,7 +5137,6 @@ instance.web.form.FieldMany2ManyBinaryMultiFiles = instance.web.form.AbstractFie
                     };
                 }
             }
-
         }
 
         this.set({'value': files});
diff --git a/addons/web/static/src/js/views.js b/addons/web/static/src/js/views.js
index 94ce854876e..2388c0f287a 100644
--- a/addons/web/static/src/js/views.js
+++ b/addons/web/static/src/js/views.js
@@ -1115,20 +1115,12 @@ instance.web.Sidebar = instance.web.Widget.extend({
             });
         });
     },
-    do_attachement_update: function(dataset, model_id,args) {
+    do_attachement_update: function(dataset, model_id, args) {
         var self = this;
         this.dataset = dataset;
         this.model_id = model_id;
-        if (args && args[0]["error"]) {
-             instance.web.dialog($('<div>'),{
-                    modal: true,
-                    title: "OpenERP " + _.str.capitalize(args[0]["title"]),
-                    buttons: [{
-                        text: _t("Ok"),
-                        click: function(){
-                            $(this).dialog("close");
-                    }}]
-              }).html(args[0]["error"]);
+        if (args && args[0].error) {
+            this.do_warn( instance.web.qweb.render('message_error_uploading'), args[0].error);
         }
         if (!model_id) {
             this.on_attachments_loaded([]);
diff --git a/addons/web/static/src/xml/base.xml b/addons/web/static/src/xml/base.xml
index e50d6c68ffa..ad619345c45 100644
--- a/addons/web/static/src/xml/base.xml
+++ b/addons/web/static/src/xml/base.xml
@@ -636,6 +636,8 @@
     </div>
 </t>
 
+<t t-name="message_error_uploading">Uploading error</t>
+
 <t t-name="TreeView">
     <select t-if="toolbar" style="width: 30%">
     </select>