diff --git a/chrome/content/zotero/overlay.js b/chrome/content/zotero/overlay.js
index ebc2a6ef85..787ec886a7 100644
--- a/chrome/content/zotero/overlay.js
+++ b/chrome/content/zotero/overlay.js
@@ -1397,7 +1397,7 @@ var ZoteroPane = new function()
 		}
 		else if (itemGroup.isCollection()) {
 			// In collection, only prompt if trashing
-			var prompt = force ? toTrash : false;
+			var prompt = force ? (itemGroup.isWithinGroup() ? toDelete : toTrash) : false;
 		}
 		// This should be changed if/when groups get trash
 		else if (itemGroup.isGroup()) {