diff --git a/lib/mutable-file.mjs b/lib/mutable-file.mjs
index 1721121..cf76415 100644
--- a/lib/mutable-file.mjs
+++ b/lib/mutable-file.mjs
@@ -504,6 +504,42 @@ class MutableFile extends File {
     return this.api.request(request, cb)
   }
 
+  copyTo (target, cb) {
+    if (typeof target === 'string') {
+      target = this.storage.files[target]
+    }
+
+    if (!(target instanceof File)) {
+      throw Error('target must be a folder or a nodeId')
+    }
+
+    const attributes = MutableFile.packAttributes(this.attributes)
+    getCipher(this.key).encryptCBC(attributes)
+
+    const request = {
+      a: 'p',
+      sm: 1,
+      v: 3,
+      t: target.nodeId,
+      n: [{
+        k: e64(this.storage.aes.encryptECB(this.key)),
+        a: e64(attributes),
+        h: this.nodeId,
+        t: 0
+      }]
+    }
+
+    const shares = getShares(this.storage.shareKeys, target)
+    if (shares.length > 0) {
+      request.cr = makeCryptoRequest(this.storage, [{
+        nodeId: this.nodeId,
+        key: this.key
+      }], shares)
+    }
+
+    return this.api.request(request, cb)
+  }
+
   setAttributes (attributes, originalCb) {
     const [cb, promise] = createPromise(originalCb)
     Object.assign(this.attributes, attributes)
diff --git a/test/helpers/test-runner.mjs b/test/helpers/test-runner.mjs
index a0b1b81..1ab8953 100644
--- a/test/helpers/test-runner.mjs
+++ b/test/helpers/test-runner.mjs
@@ -162,6 +162,7 @@ if (testedPlatform === 'node') {
   await new Promise(resolve => {
     const subprocess = cp.spawn('deno', [
       'test',
+      '--no-check',
       '--allow-env=MEGA_MOCK_URL',
       '--allow-net=' + gateway.slice(7, -1),
       ...extraArguments
diff --git a/types/cjs.d.ts b/types/cjs.d.ts
index 76689de..a9040b9 100644
--- a/types/cjs.d.ts
+++ b/types/cjs.d.ts
@@ -124,6 +124,7 @@ declare namespace megajs {
     setAttributes (attributes: JSON, cb?: noop): Promise<void>
     delete (permanent?: boolean, cb?: (error: err, data?: any) => void): Promise<void>
     moveTo (target: File | string, cb?: (error: err, data?: any) => void): Promise<void>
+    copyTo (target: File | string, cb?: (error: err, data?: any) => void): Promise<void>
     upload (opts: uploadOpts | string, source?: BufferString, cb?: uploadCb): Writable
     mkdir (opts: mkdirOpts | string, cb?: (error: err, file: MutableFile) => void): Promise<MutableFile>
     navigate (query: string | string[]): MutableFile | undefined
diff --git a/types/es.d.ts b/types/es.d.ts
index acf2372..a0a5ee0 100644
--- a/types/es.d.ts
+++ b/types/es.d.ts
@@ -120,6 +120,7 @@ declare class MutableFile extends File {
   setAttributes (attributes: JSON, cb?: noop): Promise<void>
   delete (permanent?: boolean, cb?: (error: err, data?: any) => void): Promise<void>
   moveTo (target: File | string, cb?: (error: err, data?: any) => void): Promise<void>
+  copyTo (target: File | string, cb?: (error: err, data?: any) => void): Promise<void>
   upload (opts: uploadOpts | string, source?: BufferString, cb?: uploadCb): Writable
   mkdir (opts: mkdirOpts | string, cb?: (error: err, file: MutableFile) => void): Promise<MutableFile>
   navigate (query: string | string[]): MutableFile | undefined