Index: djopt.c
===================================================================
--- djopt.c	(revision 6104)
+++ djopt.c	(revision 6105)
@@ -2461,7 +2461,7 @@
 static void grok_layer_groups()
 {
 	int i, j, f;
-	pcb_layer_group_t *l = &(PCB->LayerGroups);
+	pcb_layer_stack_t *l = &(PCB->LayerGroups);
 
 	solder_layer = component_layer = -1;
 	for (i = 0; i < pcb_max_copper_layer; i++) {