diff --git a/account_invoice_accrual_merge/i18n/es.po b/account_invoice_accrual_merge/i18n/es.po
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+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+#	* account_invoice_accrual_merge
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 10.0\n"
+"Report-Msgid-Bugs-To: \n"
+"Last-Translator: Automatically generated\n"
+"Language-Team: none\n"
+"Language: es\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: \n"
+"Plural-Forms: nplurals=2; plural=n != 1;\n"
+
+#. module: account_invoice_accrual_merge
+#: model:ir.model,name:account_invoice_accrual_merge.model_account_invoice
+msgid "Invoice"
+msgstr ""
+
+#. module: account_invoice_accrual_merge
+#: code:addons/account_invoice_accrual_merge/models/account_invoice.py:19
+#, python-format
+msgid "You cannot merge invoices where only some of them have an accrual entry"
+msgstr ""