diff --git a/Directory.Build.props b/Directory.Build.props
index cbf2f3e..bb87ccb 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -13,4 +13,7 @@
     <PackageReference Include="Nerdbank.GitVersioning" Version="3.6.133" PrivateAssets="all"/>
     <SourceLinkGitHubHost Include="github.com" ContentUrl="https://raw.githubusercontent.com"/>
   </ItemGroup>
+  <PropertyGroup Condition="'$(GITHUB_ACTION)' != ''">
+    <ContinuousIntegrationBuild>true</ContinuousIntegrationBuild>
+  </PropertyGroup>
 </Project>