diff --git a/src/main.rs b/src/main.rs
index 42754c9..4d1632c 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -4,6 +4,9 @@ mod config;
 #[path = "routes/index.rs"]
 mod index;
 
+#[path = "routes/not_found.rs"]
+mod not_found;
+
 #[path = "routes/agreements.rs"]
 mod agreements;
 
@@ -22,6 +25,7 @@ async fn main() -> std::io::Result<()> {
             .service(agreements::humans)
             .service(agreements::robots)
             .service(agreements::sitemap)
+            .default_service(web::to(not_found::page))
     })
     .bind(addr)?
     .run()
diff --git a/src/routes/not_found.rs b/src/routes/not_found.rs
new file mode 100644
index 0000000..462b8c7
--- /dev/null
+++ b/src/routes/not_found.rs
@@ -0,0 +1,5 @@
+use actix_web::{HttpResponse, Responder};
+
+pub async fn page() -> impl Responder {
+    HttpResponse::NotFound().body("404 :/")
+}