diff --git a/runtime/CSharp/Antlr4.csproj b/runtime/CSharp/Antlr4.csproj
index 431c87330..0a7b1e006 100644
--- a/runtime/CSharp/Antlr4.csproj
+++ b/runtime/CSharp/Antlr4.csproj
@@ -32,6 +32,7 @@
     <GenerateAssemblyFileVersionAttribute>false</GenerateAssemblyFileVersionAttribute>
     <GenerateAssemblyInformationalVersionAttribute>false</GenerateAssemblyInformationalVersionAttribute>
     <RootNamespace>Antlr4.Runtime</RootNamespace>
+    <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
diff --git a/runtime/CSharp/Properties/AssemblyInfo.cs b/runtime/CSharp/Properties/AssemblyInfo.cs
index d846533bb..4e719d09c 100644
--- a/runtime/CSharp/Properties/AssemblyInfo.cs
+++ b/runtime/CSharp/Properties/AssemblyInfo.cs
@@ -3,5 +3,7 @@
  * can be found in the LICENSE.txt file in the project root.
  */
 using System;
+using System.Reflection;
 
 [assembly: CLSCompliant(true)]
+[assembly: AssemblyVersion("4.9.1")]
\ No newline at end of file