diff --git a/Hardware/HDD/HDD.cs b/Hardware/HDD/HDD.cs
index ec9a8d3..5f6ed1f 100644
--- a/Hardware/HDD/HDD.cs
+++ b/Hardware/HDD/HDD.cs
@@ -16,7 +16,7 @@
 
   The Initial Developer of the Original Code is 
   Michael Möller <m.moeller@gmx.ch>.
-  Portions created by the Initial Developer are Copyright (C) 2009-2010
+  Portions created by the Initial Developer are Copyright (C) 2009-2011
   the Initial Developer. All Rights Reserved.
 
   Contributor(s): Paul Werelds
@@ -162,6 +162,9 @@ namespace OpenHardwareMonitor.Hardware.HDD {
       visitor.VisitHardware(this);
     }
 
-    public void Traverse(IVisitor visitor) { }
+    public void Traverse(IVisitor visitor) {
+      foreach (ISensor sensor in Sensors)
+        sensor.Accept(visitor);
+    }
   }
 }