diff --git a/eng/pipelines/prepare-pipelines.yml b/eng/pipelines/prepare-pipelines.yml
index 01641f27d..84d4b4faf 100644
--- a/eng/pipelines/prepare-pipelines.yml
+++ b/eng/pipelines/prepare-pipelines.yml
@@ -1,10 +1,9 @@
 trigger: none
 
+variables:
+- template: /eng/pipelines/templates/variables/image.yml
+
 extends:
   template: /eng/common/pipelines/templates/jobs/prepare-pipelines.yml
   parameters:
-    Repository: $(Build.Repository.Name)
-    Prefix: cpp
-    CIConventionOptions: ''
-    UPConventionOptions: '--variablegroups 58 76 64 93'
-    TestsConventionOptions: ''
+    Repository: Azure/azure-sdk-for-cpp