Index: read.c
===================================================================
--- read.c	(revision 20900)
+++ read.c	(revision 20901)
@@ -483,7 +483,7 @@
 
 	Mask = Thickness + st->mask_clearance;
 
-	ps = pcb_pstk_new_compat_via(data, X, Y, Drill, Thickness, Clearance, Mask, PCB_PSTK_COMPAT_ROUND, 1);
+	ps = pcb_pstk_new_compat_via(data, -1, X, Y, Drill, Thickness, Clearance, Mask, PCB_PSTK_COMPAT_ROUND, 1);
 	return ps != NULL;
 }