diff --git a/README.md b/README.md
index ebd6e1e..1158413 100644
--- a/README.md
+++ b/README.md
@@ -20,7 +20,7 @@ ## Usage:
     ```shell
     /your-project/ssl/certbot-docker-script/generate-certs.sh ../config.sh
     ```
-   - _Since we `chdir` inside the script, therefore you can keep using `config.sh` with relative path in the command and also `certs_dir` in config.sh_
+   - _Since we `chdir` inside the script, therefore you must use `config.sh` with relative path in the command and also `certs_dir` in config.sh_
 
 
 ## Info: