diff --git a/issue8369.diff b/issue8369.diff
new file mode 100644
index 0000000..375c6f3
--- /dev/null
+++ b/issue8369.diff
@@ -0,0 +1,11 @@
+--- a/trytond/trytond/convert.py	Tue May 28 10:03:40 2019 +0200
++++ b/trytond/trytond/convert.py	Thu May 30 09:37:52 2019 +0200
+@@ -242,7 +242,7 @@
+                     context.update(CONTEXT)
+                 value = eval(eval_attr, context)
+                 if pyson_attr:
+-                    value = PYSONEncoder().encode(value)
++                    value = PYSONEncoder(sort_keys=True).encode(value)
+                 self.values[field_name] = value
+ 
+         else:
diff --git a/series b/series
index 9086cb5..f448fde 100644
--- a/series
+++ b/series
@@ -39,6 +39,8 @@ issue8413.diff # [carrier]  Add recname to search
 production_view.diff #[production] Split inputs and outputs on pages
 issue8433.diff # [stock] check inventory lines to not write if not necessary.
 
+issue8369.diff # [trytond] Sort keys of PYSON XML value
+
 # Sao
 
 issue8240.diff # Add drag and drop support to sao