diff --git a/eng/source-build-tarball-build.yml b/eng/source-build-tarball-build.yml
index 2c7a9ae59..036c285f7 100644
--- a/eng/source-build-tarball-build.yml
+++ b/eng/source-build-tarball-build.yml
@@ -3,8 +3,11 @@ pr: none
 resources:
   pipelines:
   - pipeline: installer-build-resource
-    source: dotnet-installer-official-ci
-    trigger: true # Run pipeline when any run of dotnet-installer-official-ci completes
+    ${{ if eq(variables['System.TeamProject'], 'public') }}:
+      source: installer
+    ${{ if ne(variables['System.TeamProject'], 'public') }}:
+      source: dotnet-installer-official-ci
+    trigger: true # Run pipeline when any run of installer CI completes
 
 stages:
 - stage: build