diff --git a/README.md b/README.md
index 0cf0f9b..f060122 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 
 
 ## Config file
-This script requires an ini-style config file for icinga base url and credentials.
+This script requires an ini-style config file named `config.conf` for icinga base url and credentials.
 ```
 [icinga2_api]
 baseurl = https://example.org:5665