diff --git a/build/_build.csproj b/build/_build.csproj
index b14ba09a..e586a358 100644
--- a/build/_build.csproj
+++ b/build/_build.csproj
@@ -12,6 +12,7 @@
     </PropertyGroup>
 
     <ItemGroup>
+        <PackageReference Include="JetBrains.Annotations" />
         <PackageReference Include="Nuke.Common" />
     </ItemGroup>