diff --git a/package.json b/package.json
index 3544200..9b71b5b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "mit.db",
-  "version": "2023.02.23.2",
+  "version": "2023.02.23.3",
   "description": "An easy and quick database",
   "main": "build/index.js",
   "types": "build/index.d.ts",
diff --git a/src/index.ts b/src/index.ts
index a504a86..cbc0ae6 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -4,6 +4,8 @@ import * as fs from 'fs';
 const writeDB = promisify(fs.writeFile);
 
 class MitDB {
+    readonly db;
+
     /**
      * @constructor
      * @param filename If not set, MapDB will only use internal memory
@@ -12,15 +14,16 @@ class MitDB {
      * @param options.dirname where to put the database?
      */
     constructor(fn: string, options?: { dirname: string }) {
+        let dirname;
         if (options && options.dirname) {
-            this.dirname = options.dirname;
+            dirname = options.dirname;
         } else { 
-            this.dirname = 'data';
+            dirname = 'data';
         }
 
         if (!fs.existsSync(dirname)) fs.mkdirSync(dirname);
 
-        this.db = `./${dirname}/${filename}`
+        this.db = `./${dirname}/${fn}`
     }
 
     /**