Index: trunk/src/layer_vis.c
===================================================================
--- trunk/src/layer_vis.c	(revision 8631)
+++ trunk/src/layer_vis.c	(revision 8632)
@@ -97,7 +97,7 @@
 		On = !PCB->Data->Layer[Layer].On;
 
 	if (conf_core.rc.verbose)
-		printf("pcb_layervis_change_group_vis(Layer=%d, On=%d, ChangeStackOrder=%d)\n", Layer, On, ChangeStackOrder);
+		printf("pcb_layervis_change_group_vis(Layer=%ld, On=%d, ChangeStackOrder=%d)\n", Layer, On, ChangeStackOrder);
 
 	/* decrement 'i' to keep stack in order of layergroup */
 	if ((group = pcb_layer_get_group(PCB, Layer)) >= 0) {