1 files changed, 2 insertions, 2 deletions
diff --git a/src/coreclr/tools/Common/CommandLine/ArgumentToken.cs b/src/coreclr/tools/Common/CommandLine/ArgumentToken.cs
index c93c63f961b..83ef63435d8 100644
--- a/src/coreclr/tools/Common/CommandLine/ArgumentToken.cs
+++ b/src/coreclr/tools/Common/CommandLine/ArgumentToken.cs
@@ -49,14 +49,14 @@ namespace Internal.CommandLine
 
         public override bool Equals(object obj)
         {
-            if (ReferenceEquals(obj, null))
+            if (obj is null)
                 return false;
 
             if (ReferenceEquals(obj, this))
                 return true;
 
             var other = obj as ArgumentToken;
-            return !ReferenceEquals(other, null) && Equals(other);
+            return other is not null && Equals(other);
         }
 
         public override int GetHashCode()