diff --git a/Rx.NET/Source/src/System.Reactive/Linq/Observable/Where.cs b/Rx.NET/Source/src/System.Reactive/Linq/Observable/Where.cs
index 62320f39b8..9fe3daf392 100644
--- a/Rx.NET/Source/src/System.Reactive/Linq/Observable/Where.cs
+++ b/Rx.NET/Source/src/System.Reactive/Linq/Observable/Where.cs
@@ -38,7 +38,7 @@ public _(Func<TSource, bool> predicate, IObserver<TSource> observer)
 
                 public override void OnNext(TSource value)
                 {
-                    var shouldRun = default(bool);
+                    var shouldRun = false;
                     try
                     {
                         shouldRun = _predicate(value);
@@ -81,12 +81,11 @@ public _(Func<TSource, int, bool> predicate, IObserver<TSource> observer)
                     : base(observer)
                 {
                     _predicate = predicate;
-                    _index = 0;
                 }
 
                 public override void OnNext(TSource value)
                 {
-                    var shouldRun = default(bool);
+                    var shouldRun = false;
                     try
                     {
                         shouldRun = _predicate(value, checked(_index++));