Index: trunk/src_plugins/rbs_routing/map.c
===================================================================
--- trunk/src_plugins/rbs_routing/map.c	(revision 38764)
+++ trunk/src_plugins/rbs_routing/map.c	(revision 38765)
@@ -281,6 +281,9 @@
 		grbs_line_t *prevline = NULL;
 		double copper, clearance;
 
+		if (seg->objs.used <= 1)
+			continue;
+
 		rnd_trace("net %p\n", seg->net);
 
 		/* figure copper and clearance size for this two-net */