diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 06c855fc9..93d153a69 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -440,7 +440,7 @@ Execute
 docker run --rm -it -p 8080:8080 -p 127.0.0.1:8081:8081 mitmproxy/mitmproxy mitmweb --web-host 0.0.0.0
 ```
 
-and point your browser to http://0.0.0.0:8081/
+and point your browser to http://127.0.0.0:8081/
 
 #### OkHttp proxy setup
 Since most of the manga sources are going to use https we need to disable ssl verification in order to use web debugger.