diff --git a/Blazor.PWA.MSBuild.Tasks/build/BlazorPWA.MSBuild.targets b/Blazor.PWA.MSBuild.Tasks/build/BlazorPWA.MSBuild.targets
index e63a252..c21e7a0 100644
--- a/Blazor.PWA.MSBuild.Tasks/build/BlazorPWA.MSBuild.targets
+++ b/Blazor.PWA.MSBuild.Tasks/build/BlazorPWA.MSBuild.targets
@@ -9,6 +9,7 @@
     <BlazorProjectType Condition="'$(BlazorProjectType)' == '' AND '$(TargetFramework)' == 'netcoreapp3.1'">SSB</BlazorProjectType>
     <BlazorProjectType Condition="'$(BlazorProjectType)' == '' AND '$(TargetFramework)' == 'netcoreapp3.0'">SSB</BlazorProjectType>
     <BlazorProjectType Condition="'$(BlazorProjectType)' == '' AND '$(TargetFramework)' == 'netstandard2.0'">CSB</BlazorProjectType>
+    <BlazorProjectType Condition="'$(BlazorProjectType)' == '' AND '$(TargetFramework)' == 'netstandard2.1'">CSB</BlazorProjectType>
   </PropertyGroup>
 
   <PropertyGroup Label="ServiceWorker">
@@ -70,4 +71,4 @@
     <CallTarget Targets="BuildServiceWorker"/>
   </Target>
 
-</Project>
\ No newline at end of file
+</Project>