diff --git a/src/hlr_ussd.c b/src/hlr_ussd.c
index 4ec9825..c96f47c 100644
--- a/src/hlr_ussd.c
+++ b/src/hlr_ussd.c
@@ -507,6 +507,11 @@
 						ss->is_external = false;
 						ss->u.iuse = rt->u.iuse;
 					}
+				} else {
+					if (hlr->euse_default) {
+						ss->is_external = true;
+						ss->u.euse = hlr->euse_default;
+					}
 				}
 			}
 			/* dispatch unstructured SS to routing */