diff --git a/src/Linux.Bluetooth/Adapter.cs b/src/Linux.Bluetooth/Adapter.cs
index 6abd660..35cd9ef 100644
--- a/src/Linux.Bluetooth/Adapter.cs
+++ b/src/Linux.Bluetooth/Adapter.cs
@@ -12,7 +12,7 @@ namespace Linux.Bluetooth
 
   /// <summary>Add events to IAdapter1.</summary>
   /// <remarks>
-  ///   Reference: https://github.com/bluez/bluez/blob/master/doc/adapter-api.txt
+  ///   Reference: https://github.com/bluez/bluez/blob/master/doc/org.bluez.Adapter.rst
   /// </remarks>
   public class Adapter : IAdapter1, IDisposable
   {
@@ -46,6 +46,8 @@ public void Dispose()
     {
       _interfacesWatcher?.Dispose();
       _interfacesWatcher = null;
+      _propertyWatcher?.Dispose();
+      _propertyWatcher = null;
 
       GC.SuppressFinalize(this);
     }