diff --git a/addons/account/data/mail_template_data.xml b/addons/account/data/mail_template_data.xml
index def7a705654..ef70b7f4430 100644
--- a/addons/account/data/mail_template_data.xml
+++ b/addons/account/data/mail_template_data.xml
@@ -38,7 +38,7 @@
             Please remit payment at your earliest convenience.
         % endif
         <br /><br />
-        Do not hesitate to contact us if you have any question.
+        Do not hesitate to contact us if you have any questions.
     </p>
 </div>
             </field>
diff --git a/addons/account/data/payment_receipt_data.xml b/addons/account/data/payment_receipt_data.xml
index 4ba1ec83168..4895232ad10 100644
--- a/addons/account/data/payment_receipt_data.xml
+++ b/addons/account/data/payment_receipt_data.xml
@@ -16,7 +16,7 @@
         Here is your payment receipt <strong>${(object.name or '').replace('/','-')}</strong> amounting
         to <strong>${format_amount(object.amount, object.currency_id)}</strong> from ${object.company_id.name}.
         <br /><br />
-        Do not hesitate to contact us if you have any question.
+        Do not hesitate to contact us if you have any questions.
         <br/><br/>
         Best regards,<br/>
         % if user and user.signature:
diff --git a/addons/l10n_be_invoice_bba/data/mail_template_data.xml b/addons/l10n_be_invoice_bba/data/mail_template_data.xml
index 5e6bfecdfb7..afd26d6ec24 100644
--- a/addons/l10n_be_invoice_bba/data/mail_template_data.xml
+++ b/addons/l10n_be_invoice_bba/data/mail_template_data.xml
@@ -29,7 +29,7 @@
             Please use the following communication for your payment: <strong>${object.reference}</strong>.
         % endif
         <br /><br />
-        Do not hesitate to contact us if you have any question.
+        Do not hesitate to contact us if you have any questions.
     </p>
 </div>
             </field>
diff --git a/addons/lunch/data/lunch_data.xml b/addons/lunch/data/lunch_data.xml
index 05cb5d1f98d..30b3ce4b53c 100644
--- a/addons/lunch/data/lunch_data.xml
+++ b/addons/lunch/data/lunch_data.xml
@@ -97,7 +97,7 @@
             </tbody>
         </table>
 
-        <p>Do not hesitate to contact us if you have any question.</p>
+        <p>Do not hesitate to contact us if you have any questions.</p>
     </div>
                     </td>
                 </tr>
diff --git a/addons/sale/data/mail_data.xml b/addons/sale/data/mail_data.xml
index 34dd1065c21..c149738db3a 100644
--- a/addons/sale/data/mail_data.xml
+++ b/addons/sale/data/mail_data.xml
@@ -100,7 +100,7 @@
             amounting in <strong>${format_amount(object.amount_total, object.pricelist_id.currency_id)}</strong> is ready for review.
         % endif
         <br/><br/>
-        Do not hesitate to contact us if you have any question.
+        Do not hesitate to contact us if you have any questions.
         <br/>
     </p>
 </div>
@@ -135,7 +135,7 @@
             % endif
         % endif
         <br/><br/>
-        Do not hesitate to contact us if you have any question.
+        Do not hesitate to contact us if you have any questions.
         <br/><br/>
         % if object.website_id:
             <table width="100%" style="color: #454748; font-size: 12px; border-collapse: collapse;">