diff --git a/packages/idb-bridge/src/idbtypes.ts b/packages/idb-bridge/src/idbtypes.ts
index 5fc58e88b..a7878c38f 100644
--- a/packages/idb-bridge/src/idbtypes.ts
+++ b/packages/idb-bridge/src/idbtypes.ts
@@ -267,7 +267,7 @@ export interface IDBCursor {
   /**
    * Returns the IDBObjectStore or IDBIndex the cursor was opened from.
    */
-  readonly source: IDBObjectStore | IDBIndex | IDBCursor;
+  readonly source: IDBObjectStore | IDBIndex;
   /**
    * Advances the cursor through the next count records in range.
    */