Index: layer_ui.c
===================================================================
--- layer_ui.c	(revision 29668)
+++ layer_ui.c	(revision 29669)
@@ -74,7 +74,7 @@
 
 static void pcb_uilayer_free_(pcb_layer_t *l, long idx)
 {
-	pcb_layer_free_fields(l);
+	pcb_layer_free_fields(l, 0);
 	free(l);
 	pcb_uilayers.array[idx] = NULL;
 }