diff --git a/eng/pipelines/variables/common.yml b/eng/pipelines/variables/common.yml
index 9a3ccd31f..ce9f7e22d 100644
--- a/eng/pipelines/variables/common.yml
+++ b/eng/pipelines/variables/common.yml
@@ -36,6 +36,3 @@ variables:
 - ${{ if not(parameters.disableMatrixTrimming) }}:
   - name: trimCachedImagesForMatrix
     value: true
-- ${{ if eq(variables['System.TeamProject'], 'internal') }}:
-  - name: build.imageBuilderDockerRunExtraOptions
-    value: -e DOCKER_REPO=$(acr.server)/$(stagingRepoPrefix)dotnet-buildtools/prereqs