diff --git a/dotnet/agent-framework-dotnet.slnx b/dotnet/agent-framework-dotnet.slnx
index 601c6e88d5..062a439657 100644
--- a/dotnet/agent-framework-dotnet.slnx
+++ b/dotnet/agent-framework-dotnet.slnx
@@ -77,6 +77,7 @@
   <Folder Name="/Samples/02-agents/AGUI/Step04_HumanInLoop/">
     <Project Path="samples/02-agents/AGUI/Step04_HumanInLoop/Client/Client.csproj" />
     <Project Path="samples/02-agents/AGUI/Step04_HumanInLoop/Server/Server.csproj" />
+  </Folder>
   <Folder Name="/Samples/GettingStarted/AgentSkills/">
     <File Path="samples/GettingStarted/AgentSkills/README.md" />
     <Project Path="samples/GettingStarted/AgentSkills/Agent_Step01_BasicSkills/Agent_Step01_BasicSkills.csproj" />
@@ -151,6 +152,7 @@
   </Folder>
   <Folder Name="/Samples/02-agents/Observability/">
     <Project Path="samples/02-agents/AgentOpenTelemetry/AgentOpenTelemetry.csproj" />
+  </Folder>
   <Folder Name="/Samples/GettingStarted/AgentWithMemory/">
     <File Path="samples/GettingStarted/AgentWithMemory/README.md" />
     <Project Path="samples/GettingStarted/AgentWithMemory/AgentWithMemory_Step01_ChatHistoryMemory/AgentWithMemory_Step01_ChatHistoryMemory.csproj" />