diff --git a/ospfd/ospf_opaque.c b/ospfd/ospf_opaque.c
index 4e7b04f..01a8e1c 100644
--- a/ospfd/ospf_opaque.c
+++ b/ospfd/ospf_opaque.c
@@ -223,6 +223,7 @@
     default:
       if (OPAQUE_TYPE_RANGE_UNASSIGNED (opaque_type))
         name = "Unassigned";
+      /* XXX warning: comparison is always true due to limited range of data type */
       else if (OPAQUE_TYPE_RANGE_RESERVED (opaque_type))
         name = "Private/Experimental";
       break;