diff --git a/doc/404.rst b/doc/404.rst
new file mode 100644
index 0000000..2885d35
--- /dev/null
+++ b/doc/404.rst
@@ -0,0 +1,12 @@
+:orphan:
+
+Not found
+=========
+
+.. note::
+	Our hard-working Cirnos cannot find the requested resource!
+
+.. image:: _static/cirnos.png
+	:name: cirnos
+	:alt: cirnos
+	:align: center
diff --git a/doc/_static/cirnos.png b/doc/_static/cirnos.png
new file mode 100644
index 0000000..6f13e3a
--- /dev/null
+++ b/doc/_static/cirnos.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:aad89e8f353c0415f7bdc97c4151e4cf2b65ec26181963e21996bf2ec3694895
+size 71046