diff --git a/Rx.NET/Source/src/System.Reactive/Linq/Observable/DistinctUntilChanged.cs b/Rx.NET/Source/src/System.Reactive/Linq/Observable/DistinctUntilChanged.cs
index 82f68639a4..ba7ce437d3 100644
--- a/Rx.NET/Source/src/System.Reactive/Linq/Observable/DistinctUntilChanged.cs
+++ b/Rx.NET/Source/src/System.Reactive/Linq/Observable/DistinctUntilChanged.cs
@@ -36,9 +36,6 @@ public _(DistinctUntilChanged<TSource, TKey> parent, IObserver<TSource> observer
             {
                 _keySelector = parent._keySelector;
                 _comparer = parent._comparer;
-
-                _currentKey = default(TKey);
-                _hasCurrentKey = false;
             }
 
             public override void OnNext(TSource value)