diff --git a/common/js/types.d.ts b/common/js/types.d.ts
index 5a83ed3c9..b21e40501 100644
--- a/common/js/types.d.ts
+++ b/common/js/types.d.ts
@@ -663,6 +663,7 @@ export interface AnySongDocument extends MongoDBDocument {
     title: string;
     artist: string;
     isAvailable: boolean;
+    firstVersion: string | null;
     /**
      * Alternative names for this song, to be used while searching.
      */
@@ -676,7 +677,7 @@ export interface AnySongDocument extends MongoDBDocument {
      * Contains the versions this song appeared in. This is used for
      * disambiguation in some games.
      */
-    version: string[];
+    versions: string[];
 }
 export interface SongDocument<G extends Game> extends AnySongDocument {
     data: SongDocumentData[G];
diff --git a/common/src/types.ts b/common/src/types.ts
index 9fd21a49b..c10743d1b 100644
--- a/common/src/types.ts
+++ b/common/src/types.ts
@@ -832,6 +832,7 @@ export interface AnySongDocument extends MongoDBDocument {
     title: string;
     artist: string;
     isAvailable: boolean;
+    firstVersion: string | null;
     /**
      * Alternative names for this song, to be used while searching.
      */
@@ -845,7 +846,7 @@ export interface AnySongDocument extends MongoDBDocument {
      * Contains the versions this song appeared in. This is used for
      * disambiguation in some games.
      */
-    version: string[];
+    versions: string[];
 }
 
 export interface SongDocument<G extends Game> extends AnySongDocument {