diff --git a/.vsts-ci.yml b/.vsts-ci.yml
index 8eeba1e2f323..a8babf11e674 100644
--- a/.vsts-ci.yml
+++ b/.vsts-ci.yml
@@ -330,6 +330,11 @@ extends:
             buildArchitecture: arm64
             runTests: false
 
+      # Source Build
+      - template: /eng/common/templates-official/jobs/source-build.yml@self
+        parameters:
+          enableInternalSources: true
+
     - ${{ if and(ne(variables['System.TeamProject'], 'public'), notin(variables['Build.Reason'], 'PullRequest')) }}:
       - stage: Publish
         dependsOn:
diff --git a/.vsts-pr.yml b/.vsts-pr.yml
index 349e05fd7105..24e64b2daeb8 100644
--- a/.vsts-pr.yml
+++ b/.vsts-pr.yml
@@ -340,6 +340,10 @@ stages:
         linuxPortable: true
         runTests: false
 
+  - template: /eng/common/templates/jobs/source-build.yml
+    parameters:
+      enableInternalSources: true
+
 - ${{ if and(ne(variables['System.TeamProject'], 'public'), notin(variables['Build.Reason'], 'PullRequest')) }}:
   - stage: Publish
     dependsOn: