diff --git a/share/tools/generate_invoices.pl b/share/tools/generate_invoices.pl
index a1540e4b5d..7fd1d3905b 100755
--- a/share/tools/generate_invoices.pl
+++ b/share/tools/generate_invoices.pl
@@ -225,11 +225,11 @@ sub generate_invoice_data{
     
     $client_contact->{country} = country($client_contact->{country} || '');
     foreach(keys %$client_contact){
-        $client_contact->{$_} = encode_entities($client_contact->{$_});
+        $client_contact->{$_} = encode_entities($client_contact->{$_}, '<>&"');
     }
     $provider_contact->{country} = country($provider_contact->{country} || '');
     foreach(keys %$provider_contact){
-        $provider_contact->{$_} = encode_entities($provider_contact->{$_});
+        $provider_contact->{$_} = encode_entities($provider_contact->{$_}, '<>&"');
     }
     # TODO: if not a full month, calculate fraction?
     #TODO: to utils::contract and share with catalyst version