diff --git a/README.md b/README.md
index 5f1caf4..88ab95b 100644
--- a/README.md
+++ b/README.md
@@ -69,10 +69,10 @@ usage: sara [-h] --config-file CONFIG_FILE
 sara: error: the following arguments are required: --config-file
 ```
 
-Sara uses just one argument, it is the name/path to the RouterOS configuration file:
+Sara uses just one argument, it is the name/path to the RouterOS configuration file. The tool supports `.rsc` files.
 
 ```bash
-caster@kali:~$ sara --config-file routeros.txt
+caster@kali:~$ sara --config-file routeros.rsc
 
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