diff --git a/Sharp7/Sharp7.csproj b/Sharp7/Sharp7.csproj
index a4aef55..7f4b3dc 100644
--- a/Sharp7/Sharp7.csproj
+++ b/Sharp7/Sharp7.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netstandard2.0</TargetFramework>
+    <TargetFrameworks>net40;netstandard2.0</TargetFrameworks>
     <AllowedOutputExtensionsInPackageBuildOutputFolder>$(AllowedOutputExtensionsInPackageBuildOutputFolder);.pdb</AllowedOutputExtensionsInPackageBuildOutputFolder>
     <Authors>Federico Barresi</Authors>
     <GeneratePackageOnBuild>true</GeneratePackageOnBuild>