diff --git a/Realtime_Voice_Changer_on_Colab.ipynb b/Realtime_Voice_Changer_on_Colab.ipynb
index 8d861f47..d5f95f1e 100644
--- a/Realtime_Voice_Changer_on_Colab.ipynb
+++ b/Realtime_Voice_Changer_on_Colab.ipynb
@@ -1,5 +1,15 @@
 {
   "cells": [
+    {
+      "cell_type": "markdown",
+      "metadata": {
+        "id": "view-in-github",
+        "colab_type": "text"
+      },
+      "source": [
+        "<a href=\"https://colab.research.google.com/github/w-okada/voice-changer/blob/master/Realtime_Voice_Changer_on_Colab.ipynb\" target=\"_parent\"><img src=\"https://colab.research.google.com/assets/colab-badge.svg\" alt=\"Open In Colab\"/></a>"
+      ]
+    },
     {
       "cell_type": "markdown",
       "metadata": {
@@ -162,7 +172,8 @@
   "metadata": {
     "accelerator": "GPU",
     "colab": {
-      "provenance": []
+      "provenance": [],
+      "include_colab_link": true
     },
     "gpuClass": "standard",
     "kernelspec": {
@@ -175,4 +186,4 @@
   },
   "nbformat": 4,
   "nbformat_minor": 0
-}
+}
\ No newline at end of file