0050379: CRM - External Business Partner Printing Closed Invoice does not retrieve external BP information

diff --git a/src/org/openbravo/retail/posterminal/InvoiceProperties.java b/src/org/openbravo/retail/posterminal/InvoiceProperties.java
index 7b67d3fcc..b1aba0607 100644
--- a/src/org/openbravo/retail/posterminal/InvoiceProperties.java
+++ b/src/org/openbravo/retail/posterminal/InvoiceProperties.java
@@ -52,6 +52,8 @@ public class InvoiceProperties extends ModelExtension {
 
         add(new HQLProperty("pos.id", "posTerminal"));
         add(new HQLProperty("pos.name", "posTerminal$_identifier"));
+        add(new HQLProperty("inv.externalBusinessPartnerReference",
+            "externalBusinessPartnerReference"));
       }
     };