diff --git a/dotnet/src/Microsoft.Agents.AI/ChatClient/ChatClientAgentOptions.cs b/dotnet/src/Microsoft.Agents.AI/ChatClient/ChatClientAgentOptions.cs
index 28b5643a30..20dd3647d7 100644
--- a/dotnet/src/Microsoft.Agents.AI/ChatClient/ChatClientAgentOptions.cs
+++ b/dotnet/src/Microsoft.Agents.AI/ChatClient/ChatClientAgentOptions.cs
@@ -1,4 +1,4 @@
-// Copyright (c) Microsoft. All rights reserved.
+// Copyright (c) Microsoft. All rights reserved.
 
 using System.Collections.Generic;
 using Microsoft.Agents.AI.Compaction;
diff --git a/dotnet/src/Microsoft.Agents.AI/Compaction/CompactionTrigger.cs b/dotnet/src/Microsoft.Agents.AI/Compaction/CompactionTrigger.cs
index 2ca28e2005..fb58bc1a2c 100644
--- a/dotnet/src/Microsoft.Agents.AI/Compaction/CompactionTrigger.cs
+++ b/dotnet/src/Microsoft.Agents.AI/Compaction/CompactionTrigger.cs
@@ -1,4 +1,4 @@
-// Copyright (c) Microsoft. All rights reserved.
+// Copyright (c) Microsoft. All rights reserved.
 
 namespace Microsoft.Agents.AI.Compaction;