diff --git a/sao_document_field.diff b/sao_document_field.diff
new file mode 100644
index 0000000..be04dcc
--- /dev/null
+++ b/sao_document_field.diff
@@ -0,0 +1,35 @@
+--- a/sao/src/view/form.js
++++ b/sao/src/view/form.js
+@@ -4415,15 +4418,20 @@ function eval_pyson(value){
+             this.el = jQuery('<div/>', {
+                 'class': this.class_,
+             });
+-
++            this.object = null;
++        },
++        create_object: function() {
++            if (this.object) {
++                this.object.remove();
++            }
+             this.object = jQuery('<object/>', {
+                 'class': 'center-block',
+             }).appendTo(this.el);
+-            if (attributes.height) {
+-                this.object.css('height', parseInt(attributes.height, 10));
++            if (this.attributes.height) {
++                this.object.css('height', parseInt(this.attributes.height, 10));
+             }
+-            if (attributes.width) {
+-                this.object.css('width', parseInt(attributes.width, 10));
++            if (this.attributes.width) {
++                this.object.css('width', parseInt(this.attributes.width, 10));
+             }
+         },
+         display: function() {
+@@ -4456,6 +4464,7 @@ function eval_pyson(value){
+                     });
+                     url = window.URL.createObjectURL(blob);
+                 }
++                this.create_object();
+                 this.object.attr('data', url);
+                 this.object.get(0).onload = function() {
diff --git a/series b/series
index a9c788c..c1a4515 100644
--- a/series
+++ b/series
@@ -22,3 +22,5 @@ statement_of_account.diff # [account] Cumulate balance of previous fiscal years
 issue11731.diff # [currency] currency test don't pass when Currency Rates Source Not Ready (forex)
 
 counterpart_party_payment_clearing.diff # [account_payment_clearing] Add the possiblity to have a party in the counterpart move when reconcile on a payment.
+
+sao_document_field.diff # [sao] fix issue with loading of 'document' fields in sao