diff --git a/lib/chiya_web/controllers/error_html/404.html.heex b/lib/chiya_web/controllers/error_html/404.html.heex
new file mode 100644
index 0000000..4f5e6ed
--- /dev/null
+++ b/lib/chiya_web/controllers/error_html/404.html.heex
@@ -0,0 +1,4 @@
+<.header>
+    <:title>four o' four</:title>
+    <:subtitle>this page was not found.</:subtitle>
+</.header>
\ No newline at end of file