diff --git a/README.md b/README.md
index 2c6bcb44..3bc9f442 100644
--- a/README.md
+++ b/README.md
@@ -44,6 +44,7 @@ Name     | Description | Enabled by default
 [netframework_clrsecurity](docs/collector.netframework_clrsecurity.md) | .NET Framework Security Check metrics |
 [net](docs/collector.net.md) | Network interface I/O | ✓
 [os](docs/collector.os.md) | OS metrics (memory, processes, users) | ✓
+[physical_disk](docs/collector.physical_disk.md) | physical disk metrics | ✓
 [printer](docs/collector.printer.md) | Printer metrics | 
 [process](docs/collector.process.md) | Per-process metrics |
 [remote_fx](docs/collector.remote_fx.md) | RemoteFX protocol (RDP) metrics |