diff --git a/agent/src/collectors/disk.rs b/agent/src/collectors/disk.rs
index 225a31a..f226aea 100644
--- a/agent/src/collectors/disk.rs
+++ b/agent/src/collectors/disk.rs
@@ -113,8 +113,8 @@ impl DiskCollector {
                     });
 
                     debug!(
-                        "Storage pool '{}' ({}) at {} with {} underlying drives",
-                        fs_config.name, fs_config.storage_type, fs_config.mount_point, fs_config.underlying_devices.len()
+                        "Storage pool '{}' ({}) at {} with {} detected drives",
+                        fs_config.name, fs_config.storage_type, fs_config.mount_point, device_names.len()
                     );
                 }
                 Err(e) => {