diff --git a/WINGs/wpopupbutton.c b/WINGs/wpopupbutton.c
index 4899230..73bb4c2 100644
--- a/WINGs/wpopupbutton.c
+++ b/WINGs/wpopupbutton.c
@@ -573,6 +573,9 @@ static void handleActionEvents(WMEvent * event, void *data)
 			 * everything ourselves. */
 			int n = WMGetArrayItemCount(bPtr->items);
 			int i;
+			wwarning("popup expose: bPtr=%p menuView=%p items=%d highlight=%d mapped=%d",
+			         (void*)bPtr, (void*)bPtr->menuView, n, bPtr->highlightedItem,
+			         bPtr->menuView ? bPtr->menuView->flags.mapped : -1);
 			for (i = 0; i < n; i++) {
 				paintMenuEntry(bPtr, i, i == bPtr->highlightedItem);
 			}