diff --git a/web/404.html b/web/404.html
new file mode 100644
index 0000000..67cd3f6
--- /dev/null
+++ b/web/404.html
@@ -0,0 +1,13 @@
+---
+layout: default
+permalink: /404.html
+---
+
+<head>
+    <title>404</title>
+    <meta http-equiv="refresh" content="0;url=/">
+</head>
+
+<body>
+<p>If you are not redirected, <a href="/">click here</a>.</p>
+</body>
diff --git a/web/_config.yml b/web/_config.yml
index 794bf5d..b88b6e2 100644
--- a/web/_config.yml
+++ b/web/_config.yml
@@ -100,7 +100,7 @@ content:
       - layout: left
         title: Ho Chi Minh City University of Technology
         caption: 2017 - present
-        sub_title: BSc Computer Science
+        sub_title: BEng Computer Science
         quote: >
           1 Encouraging Study Scholarship.<br>
           1 Student of 5 merits.