Index: layer.c
===================================================================
--- layer.c	(revision 26775)
+++ layer.c	(revision 26776)
@@ -1135,7 +1135,7 @@
 		pcb_layergrp_id_t grp;
 		pcb_layer_id_t lid = v->new_id;
 		grp = pcb_layer_get_group(pcb, lid);
-		return pcb_gui->set_layer_group(&pcb->hidlib, grp, v->purpose, v->purpi, lid, v->type, is_empty, xform);
+		return pcb_gui->set_layer_group(pcb_gui, &pcb->hidlib, grp, v->purpose, v->purpi, lid, v->type, is_empty, xform);
 	}
 
 	/* if the GUI doesn't have a set_layer, assume it wants to draw all layers */
@@ -1152,7 +1152,7 @@
 		*xform = NULL;
 
 	if (pcb_gui->set_layer_group != NULL)
-		return pcb_gui->set_layer_group(&PCB->hidlib, -1, NULL, -1, pcb_layer_id(first->parent.data, first), PCB_LYT_VIRTUAL | PCB_LYT_UI, is_empty, xform);
+		return pcb_gui->set_layer_group(pcb_gui, &PCB->hidlib, -1, NULL, -1, pcb_layer_id(first->parent.data, first), PCB_LYT_VIRTUAL | PCB_LYT_UI, is_empty, xform);
 
 	/* if the GUI doesn't have a set_layer, assume it wants to draw all layers */
 	return 1;