diff --git a/src/App.svelte b/src/App.svelte
index db20630..9ecb8a2 100644
--- a/src/App.svelte
+++ b/src/App.svelte
@@ -781,6 +781,7 @@
   }
 
   function discardPendingOverlayDraft() {
+    if (!window.confirm('Discard the cached local overlay draft? This cannot be undone.')) return;
     if (selectedOverlayId) localStorage.removeItem(overlayDraftCacheKey(selectedOverlayId));
     pendingOverlayDraft = null;
   }