diff --git a/packages/core/file-system/file-system-access.ios.ts b/packages/core/file-system/file-system-access.ios.ts
index 68b5b182e..06130b1f4 100644
--- a/packages/core/file-system/file-system-access.ios.ts
+++ b/packages/core/file-system/file-system-access.ios.ts
@@ -474,3 +474,6 @@ export class FileSystemAccess {
 		return iOSNativeHelper.joinPaths(...paths);
 	}
 }
+
+// stub to avoid cross platform warning
+export class FileSystemAccess29 extends FileSystemAccess {}