diff --git a/common/package.json b/common/package.json
index 3734d3930..020f9fc59 100644
--- a/common/package.json
+++ b/common/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "tachi-common",
-	"version": "0.2.9",
+	"version": "0.2.10",
 	"description": "Common Types & Utilities for Tachi",
 	"main": "js/index.js",
 	"files": [
diff --git a/common/src/types.ts b/common/src/types.ts
index f2ba06b78..ba30cb4b1 100644
--- a/common/src/types.ts
+++ b/common/src/types.ts
@@ -916,6 +916,11 @@ export interface BaseFolderDocument extends MongoDBDocument {
 	game: Game;
 	playtype: AnyPlaytype;
 	folderID: string;
+	/**
+	 * This folder has been superceded by another folder,
+	 * such as one on a more modern version of the game.
+	 */
+	inactive: boolean;
 }
 
 export interface FolderSongsDocument extends BaseFolderDocument {