diff --git a/main.py b/main.py
index 8f9961c..2d884a1 100644
--- a/main.py
+++ b/main.py
@@ -149,6 +149,13 @@ async def simpleer_search(query, page):
 
 @app.route("/<string:domain>/")
 async def instance(domain):
+    # favicon.ico is not a domain name
+    if domain == "favicon.ico":
+        return await render_template(
+            "error.html",
+            error_number = "404",
+            error_reason = "We don't have a favicon yet. If you would like to contribute one, please send it to ~metalune/public-inbox@lists.sr.ht"
+        ), 404
     return redirect("/" + domain + "/videos/trending")
 
 @app.route("/<string:domain>/videos/local", defaults = {"page": 1})
diff --git a/templates/error.html b/templates/error.html
new file mode 100644
index 0000000..7d8f4c5
--- /dev/null
+++ b/templates/error.html
@@ -0,0 +1,8 @@
+{% extends "base.html" %}
+
+{% block title %}ERROR: {% endblock %}
+
+{% block content %}
+<h1>Error {{ error_number }}</h1>
+<p>{{ error_reason }}</p>
+{% endblock %}