Index: trunk/src_plugins/diag/integrity.c
===================================================================
--- trunk/src_plugins/diag/integrity.c	(revision 20906)
+++ trunk/src_plugins/diag/integrity.c	(revision 20907)
@@ -259,6 +259,7 @@
 	{
 		pcb_subc_t *subc;
 		pcb_pstk_t *ps;
+		pcb_rat_t *rat;
 
 		for(ps = padstacklist_first(&data->padstack); ps != NULL; ps = padstacklist_next(ps)) {
 			check_parent("padstack", ps, PCB_PARENT_DATA, data);
@@ -275,6 +276,14 @@
 			chk_subc(whose, subc);
 			chk_attr("subc", subc);
 		}
+
+		/* check rat line objects */
+		for(rat = ratlist_first(&data->Rat); rat != NULL; rat = ratlist_next(rat)) {
+			check_parent("rat", rat, PCB_PARENT_DATA, data);
+			check_obj_id("rat", data, rat);
+			check_type(rat, PCB_OBJ_RAT);
+			chk_attr("rat", rat);
+		}
 	}
 
 	/* Safe check for the other way around: if the hash contains more entries