diff --git a/src/main/java/org/ntlab/amaryllis/server/utils/Base64Decode.java b/src/main/java/org/ntlab/amaryllis/server/utils/Base64Decode.java
index f164bda..ead07c2 100644
--- a/src/main/java/org/ntlab/amaryllis/server/utils/Base64Decode.java
+++ b/src/main/java/org/ntlab/amaryllis/server/utils/Base64Decode.java
@@ -1,6 +1,7 @@
 package org.ntlab.amaryllis.server.utils;
 
 import java.io.*;
+import java.util.ArrayList;
 import java.util.Base64;
 
 public class Base64Decode {
@@ -10,6 +11,7 @@
 
             //ファイル作成
             File file = new File("http://nitta-lab-www.is.konan-u.ac.jp/amaryllis/amaryllis/data/" + vid+ ".mp4");
+            file.createNewFile();
 
             //ファイルに音声データを書き込む
             FileWriter file1 = new FileWriter("http://nitta-lab-www.is.konan-u.ac.jp/amaryllis/data/" + vid+ ".mp4");