diff --git a/README.md b/README.md
index 244c983..07bc72b 100644
--- a/README.md
+++ b/README.md
@@ -49,7 +49,7 @@ The HTML code for the frontend can be generated by using `trunk build`. The resu
 ```mermaid
 classDiagram
     namespace Backend {
-        class cookie_Error {
+        class Error {
             +status: &'static str
             +message: String
         }