diff --git a/templates/UmbracoProject/UmbracoProject.csproj b/templates/UmbracoProject/UmbracoProject.csproj
index 447dbcc76c..14d49df963 100644
--- a/templates/UmbracoProject/UmbracoProject.csproj
+++ b/templates/UmbracoProject/UmbracoProject.csproj
@@ -2,6 +2,7 @@
 
     <PropertyGroup>
         <TargetFramework>net6.0</TargetFramework>
+        <Nullable>enable</Nullable>
         <RootNamespace Condition="'$(name)' != '$(name{-VALUE-FORMS-}safe_namespace)'">Umbraco.Cms.Web.UI</RootNamespace>
     </PropertyGroup>