diff --git a/sandbox/Example.ProtoBufMessages/Example.ProtoBufMessages.csproj b/sandbox/Example.ProtoBufMessages/Example.ProtoBufMessages.csproj
index 6d3ff0f78..bd3895d28 100644
--- a/sandbox/Example.ProtoBufMessages/Example.ProtoBufMessages.csproj
+++ b/sandbox/Example.ProtoBufMessages/Example.ProtoBufMessages.csproj
@@ -5,6 +5,7 @@
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
     <RootNamespace>Example.ProtoMessages</RootNamespace>
+    <IsPackable>false</IsPackable>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/tests/NATS.Client.CheckNativeAot/NATS.Client.CheckNativeAot.csproj b/tests/NATS.Client.CheckNativeAot/NATS.Client.CheckNativeAot.csproj
index 9b9ae815c..a4c9f0741 100644
--- a/tests/NATS.Client.CheckNativeAot/NATS.Client.CheckNativeAot.csproj
+++ b/tests/NATS.Client.CheckNativeAot/NATS.Client.CheckNativeAot.csproj
@@ -6,13 +6,14 @@
         <ImplicitUsings>enable</ImplicitUsings>
         <Nullable>enable</Nullable>
         <PublishAot>true</PublishAot>
+        <IsPackable>false</IsPackable>
     </PropertyGroup>
 
   <ItemGroup>
     <PackageReference Include="xunit" Version="2.4.2" />
     <Using Include="Xunit" />
   </ItemGroup>
-  
+
     <ItemGroup>
       <ProjectReference Include="..\..\src\NATS.Client.Core\NATS.Client.Core.csproj" />
       <ProjectReference Include="..\..\src\NATS.Client.Hosting\NATS.Client.Hosting.csproj" />