diff --git a/addons/account_followup/report/rappel.rml b/addons/account_followup/report/rappel.rml
index f2050fdd57b..c7a6d1e038e 100644
--- a/addons/account_followup/report/rappel.rml
+++ b/addons/account_followup/report/rappel.rml
@@ -96,7 +96,7 @@
       <font face="Times-Roman">Date: </font>
       <font face="Times-Roman">[[ time.strftime('%d/%m/%Y') ]]</font>
     </para>
-    <para style="P15"><font face="Times-Roman">Customer Ref:</font> [[ o.id ]]</para>
+    <para style="P15"><font face="Times-Roman">Customer Ref:</font> [[ o.ref ]]</para>
     <para style="P16">
       <font color="white"> </font>
     </para>