diff --git a/README.md b/README.md
index 8376625a59375457ea3f0f95f0869e1e324e26de..d9e810b99a98341c2e9c3473be0bf007bb636c2c 100644
--- a/README.md
+++ b/README.md
@@ -45,7 +45,7 @@ $ pip3 install -r requirements.txt
 
 Run resource directory:
 ```console
-$ python3 src/resource_directory.py
+$ python3 src/resource_directory.py --interface <name of the network interface>
 ```
 
 Run the example Eddie endpoint: