diff --git a/README.md b/README.md
index f6c5f34..2c67a65 100644
--- a/README.md
+++ b/README.md
@@ -19,7 +19,7 @@ sudo python3 setup.py install
 ## Usage
 
   ```bash
-Usage: ovh_dns_ensure.py [OPTIONS]
+Usage: ovh_dns_ensure.sh [OPTIONS]
 
 Options:
   -d, --debug-level [CRITICAL|ERROR|WARNING|INFO|DEBUG|NOTSET]