diff --git a/dotnet/src/Microsoft.Agents.AI.Abstractions/AgentRunOptions.cs b/dotnet/src/Microsoft.Agents.AI.Abstractions/AgentRunOptions.cs
index 9cd6d51680..0af00bbaca 100644
--- a/dotnet/src/Microsoft.Agents.AI.Abstractions/AgentRunOptions.cs
+++ b/dotnet/src/Microsoft.Agents.AI.Abstractions/AgentRunOptions.cs
@@ -75,7 +75,7 @@ public AgentRunOptions(AgentRunOptions options)
     /// If the implementation does not support background responses, this property will be ignored.
     /// </para>
     /// </remarks>
-    public bool? AllowBackgroundResponses { get; set; }
+    public bool AllowBackgroundResponses { get; set; }
 
     /// <summary>
     /// Gets or sets additional properties associated with these options.
diff --git a/dotnet/src/Microsoft.Agents.AI/ChatClient/ChatClientAgent.cs b/dotnet/src/Microsoft.Agents.AI/ChatClient/ChatClientAgent.cs
index a5a34d24a9..416352fad9 100644
--- a/dotnet/src/Microsoft.Agents.AI/ChatClient/ChatClientAgent.cs
+++ b/dotnet/src/Microsoft.Agents.AI/ChatClient/ChatClientAgent.cs
@@ -584,7 +584,7 @@ await thread.AIContextProvider.InvokedAsync(new(inputMessages, aiContextProvider
         static ChatOptions? ApplyBackgroundResponsesProperties(ChatOptions? chatOptions, AgentRunOptions? agentRunOptions)
         {
             // If any of the background response properties are set in the run options, we should apply both to the chat options.
-            if (agentRunOptions?.AllowBackgroundResponses is not null || agentRunOptions?.ContinuationToken is not null)
+            if (agentRunOptions?.AllowBackgroundResponses == true || agentRunOptions?.ContinuationToken is not null)
             {
                 chatOptions ??= new ChatOptions();
                 chatOptions.AllowBackgroundResponses = agentRunOptions.AllowBackgroundResponses;