diff --git a/src/SourceBuild/content/repo-projects/Directory.Build.targets b/src/SourceBuild/content/repo-projects/Directory.Build.targets
index 8c7a2cfb5..e1a5734ad 100644
--- a/src/SourceBuild/content/repo-projects/Directory.Build.targets
+++ b/src/SourceBuild/content/repo-projects/Directory.Build.targets
@@ -238,7 +238,7 @@
           Inputs="$(MSBuildProjectFullPath)"
           Outputs="$(RepoCompletedSemaphorePath)Build.complete">
 
-    <Exec Command="$(DOTNET_HOST_PATH) build-server shutdown" />
+    <Exec Command="$(DotnetToolCommand) build-server shutdown" />
 
     <Message Importance="High" Text="[$([System.DateTime]::Now.ToString('HH:mm:ss.ff'))] Building $(ProjectBuildReason)" />
     <Message Importance="High" Text="Running command:" />