diff --git a/src/SourceBuild/content/repo-projects/Directory.Build.targets b/src/SourceBuild/content/repo-projects/Directory.Build.targets
index ab8a3a36f..6256d40a0 100644
--- a/src/SourceBuild/content/repo-projects/Directory.Build.targets
+++ b/src/SourceBuild/content/repo-projects/Directory.Build.targets
@@ -39,7 +39,6 @@
     <RepositoryReference Remove="sdk" />
     <RepositoryReference Remove="aspnetcore" />
     <RepositoryReference Remove="razor" />
-    <RepositoryReference Remove="deployment-tools" />
     <RepositoryReference Remove="format" />
     <RepositoryReference Remove="nuget-client" />
     <RepositoryReference Remove="fsharp" />
diff --git a/src/SourceBuild/content/repo-projects/deployment-tools.proj b/src/SourceBuild/content/repo-projects/deployment-tools.proj
index 8ef3a8a5a..85976198a 100644
--- a/src/SourceBuild/content/repo-projects/deployment-tools.proj
+++ b/src/SourceBuild/content/repo-projects/deployment-tools.proj
@@ -7,6 +7,9 @@
 
   <ItemGroup>
     <EnvironmentVariables Include="LatestCommit=$(GitCommitHash)" />
+
+    <!-- https://github.com/dotnet/source-build/issues/4115. -->
+    <EnvironmentVariables Include="PublishWindowsPdb=false" />
   </ItemGroup>
 
 </Project>