diff --git a/src/utility/cfg.rs b/src/utility/cfg.rs
index 68b01fc..f12e51f 100644
--- a/src/utility/cfg.rs
+++ b/src/utility/cfg.rs
@@ -92,6 +92,8 @@ pub fn read_settings() -> Result<Settings, Error> {
     Ok(settings_map)
 }
 
+/// Returns a mock configuration for Machine unit testing
+/// FIXME: Does not cover the whole configuration yet
 pub fn get_debug_configuration() -> Settings {
     let mut settings_map = Settings::new();
     settings_map.insert(MachineSettingKey::PageSize, 128);