diff --git a/addons/account_asset/account_asset_invoice.py b/addons/account_asset/account_asset_invoice.py
index 38fea23fbe3..9212bc2f73c 100644
--- a/addons/account_asset/account_asset_invoice.py
+++ b/addons/account_asset/account_asset_invoice.py
@@ -19,7 +19,9 @@
 #
 ##############################################################################
 
+from openerp import SUPERUSER_ID
 from openerp.osv import fields, osv
+from openerp.tools.translate import _
 
 class account_invoice(osv.osv):
 
@@ -45,6 +47,11 @@ class account_invoice_line(osv.osv):
     def asset_create(self, cr, uid, lines, context=None):
         context = context or {}
         asset_obj = self.pool.get('account.asset.asset')
+        for line in lines:
+            if line.invoice_id.number:
+                if asset_obj.search(cr, SUPERUSER_ID, [('code', '=', line.invoice_id.number)], context=context):
+                    raise osv.except_osv(_('Warning!'), _('You already have assets with the reference %s.\nPlease delete these assets before creating new ones for this invoice.') % (line.invoice_id.number))
+
         for line in lines:
             if line.asset_category_id:
                 vals = {
diff --git a/addons/account_asset/i18n/account_asset.pot b/addons/account_asset/i18n/account_asset.pot
index 8b7e9405ed5..56b547ebcdf 100644
--- a/addons/account_asset/i18n/account_asset.pot
+++ b/addons/account_asset/i18n/account_asset.pot
@@ -782,6 +782,12 @@ msgstr ""
 msgid "Year"
 msgstr ""
 
+#. module: account_asset
+#: code:addons/account_asset/account_asset_invoice.py:53
+#, python-format
+msgid "You already have assets with the reference %s.\nPlease delete these assets before creating new ones for this invoice."
+msgstr ""
+
 #. module: account_asset
 #: code:addons/account_asset/account_asset.py:81
 #, python-format