diff --git a/Makefile b/Makefile
index a2bca50..fbba6f8 100644
--- a/Makefile
+++ b/Makefile
@@ -236,6 +236,7 @@ test: build_javascripts
 	jest
 
 install_dev:
+	npm init -y
 	npm install terser
 	npm install uglifycss
 	npm install typescript@5.0
diff --git a/d.ts/antos.d.ts b/d.ts/antos.d.ts
index 08f2a5a..1164651 100644
--- a/d.ts/antos.d.ts
+++ b/d.ts/antos.d.ts
@@ -9008,7 +9008,7 @@ declare namespace OS {
         }
     }
 }
-declare type VFSFileHandleClass = {
+type VFSFileHandleClass = {
     new (...args: any[]): OS.API.VFS.BaseFileHandle;
 };
 interface String {