diff --git a/modules/account/move.py b/modules/account/move.py
index ab3191e..16fb786 100755
--- a/modules/account/move.py
+++ b/modules/account/move.py
@@ -117,6 +117,7 @@ class Move(DescriptionOriginMixin, ModelSQL, ModelView):
     date = fields.Date('Effective Date', required=True, states=_MOVE_STATES)
     post_date = fields.Date('Post Date', readonly=True)
     description = fields.Char('Description', states=_MOVE_STATES)
+    ext_ref = fields.Char('Ext. Ref')
     origin = fields.Reference('Origin', selection='get_origin',
         states=_MOVE_STATES)
     state = fields.Selection([
@@ -921,6 +922,7 @@ class Line(DescriptionOriginMixin, MoveLineMixin, ModelSQL, ModelView):
         fields.Reference("Move Origin", selection='get_move_origin'),
         'get_move_field', searcher='search_move_field')
     description = fields.Char('Description', states=_states)
+    ext_ref = fields.Char('Ext. Ref')
     move_description_used = fields.Function(
         fields.Char("Move Description", states=_states),
         'get_move_field',
diff --git a/modules/account/view/move_form.xml b/modules/account/view/move_form.xml
index 995b6d5..8a9cd54 100755
--- a/modules/account/view/move_form.xml
+++ b/modules/account/view/move_form.xml
@@ -21,6 +21,8 @@ this repository contains the full copyright notices and license terms. -->
     <field name="origin" colspan="3"/>
     <label name="description_used"/>
     <field name="description_used" colspan="3"/>
+    <label name="ext_ref"/>
+    <field name="ext_ref" colspan="3"/>
     <notebook>
         <page name="lines">
             <field name="lines" colspan="4"
diff --git a/modules/account/view/move_line_form.xml b/modules/account/view/move_line_form.xml
index a657036..a9499c8 100755
--- a/modules/account/view/move_line_form.xml
+++ b/modules/account/view/move_line_form.xml
@@ -26,6 +26,8 @@ this repository contains the full copyright notices and license terms. -->
     <field name="origin"/>
     <label name="description_used"/>
     <field name="description_used" colspan="3"/>
+    <label name="ext_ref"/>
+    <field name="ext_ref" colspan="3"/>
     <notebook colspan="4">
         <page string="Other Info" id="info">
             <label name="date"/>
diff --git a/modules/account/view/move_line_tree_move.xml b/modules/account/view/move_line_tree_move.xml
index 6390e8e..1dc8d95 100755
--- a/modules/account/view/move_line_tree_move.xml
+++ b/modules/account/view/move_line_tree_move.xml
@@ -12,5 +12,6 @@ this repository contains the full copyright notices and license terms. -->
     <field name="rate" optional="1"/>
     <field name="tax_lines" optional="1"/>
     <field name="description_used" expand="1" optional="1"/>
+    <field name="ext_ref" expand="1" optional="1"/>
     <field name="reconciliation" optional="1"/>
 </tree>