Index: shape_dialog.c
===================================================================
--- shape_dialog.c	(revision 23122)
+++ shape_dialog.c	(revision 23123)
@@ -132,6 +132,10 @@
 	}
 }
 
+static void shp_chg_tab(void *hid_ctx, void *caller_data, pcb_hid_attribute_t *attr)
+{
+	shape_layer_chg(NULL, 0, NULL);
+}
 
 void pcb_shape_dialog(pcb_board_t *pcb, pcb_data_t *data, pcb_layer_t *layer, pcb_bool modal)
 {
@@ -148,8 +152,8 @@
 	PCB_DAD_BEGIN_VBOX(shp->dlg);
 		PCB_DAD_COMPFLAG(shp->dlg, PCB_HATF_EXPFILL);
 		PCB_DAD_BEGIN_TABBED(shp->dlg, tabs);
-/*			shp->tab = PCB_DAD_CURRENT(shp->dlg);
-			PCB_DAD_CHANGE_CB(shp->dlg, shp_tab);*/
+			shp->tab = PCB_DAD_CURRENT(shp->dlg);
+			PCB_DAD_CHANGE_CB(shp->dlg, shp_chg_tab);
 
 			/* regpoly tab */
 			PCB_DAD_BEGIN_VBOX(shp->dlg);