diff --git a/README.md b/README.md
index 9c2979d..32cd469 100644
--- a/README.md
+++ b/README.md
@@ -12,7 +12,7 @@ Repository: [nzambello/redirector](https://git.nzambello.dev/nzambello/redirecto
 
 ```sh
 yarn install
-REDIRECT_URL=https://nzambello.dev PERMANENT=true yarn start
+REDIRECT_URL=https://nzambello.dev PERMANENT=true PRESERVE_PATH=false yarn start
 ```
 
 Then, open http://localhost:8787/ in your browser.
@@ -34,7 +34,7 @@ It loads configuration from environment variables:
 ### Docker example
 
 ```sh
-docker run -p 8787:8787 -e REDIRECT_URL=https://nzambello.dev -e PERMANENT=true nzambello/redirector:latest
+docker run -p 8787:8787 -e REDIRECT_URL=https://nzambello.dev -e PERMANENT=true PRESERVE_PATH=false nzambello/redirector:latest
 ```
 
 ### Docker compose example
@@ -48,6 +48,7 @@ services:
     environment:
       - REDIRECT_URL=https://nzambello.dev
       - PERMANENT=true
+      - PRESERVE_PATH=false
     ports:
       - 8787:8787
 ```