diff --git a/htdocs/core/class/html.formpropal.class.php b/htdocs/core/class/html.formpropal.class.php
index e23e71a8124..d9c458161bc 100644
--- a/htdocs/core/class/html.formpropal.class.php
+++ b/htdocs/core/class/html.formpropal.class.php
@@ -132,6 +132,14 @@ class FormPropal
 			print '</option>';
 			$i++;
 		}
+		//Option for Signed+Billed
+		if ($selected != '' && $selected == "2,4") {
+            print '<option value="2,4" selected>';
+        } else {
+            print '<option value="2,4">';
+        }
+		print ($langs->trans($prefix.'Signed'.($short ? 'Short' : '')).'+'.$langs->trans($prefix.'Billed'.($short ? 'Short' : '')));
+        print '</option>';
 		print '</select>';
 
 		print ajax_combobox($htmlname, array(), 0, 0, 'resolve', ($showempty < 0 ? (string) $showempty : '-1'), $morecss);