diff --git a/eng/pipelines/dotnet-buildtools-prereqs-mariner.yml b/eng/pipelines/dotnet-buildtools-prereqs-mariner.yml
index e8b2178c3..480468014 100644
--- a/eng/pipelines/dotnet-buildtools-prereqs-mariner.yml
+++ b/eng/pipelines/dotnet-buildtools-prereqs-mariner.yml
@@ -25,3 +25,5 @@ stages:
     internalProjectName: ${{ variables.internalProjectName }}
     publicProjectName: ${{ variables.publicProjectName }}
     linuxAmdBuildJobTimeout: 360
+    customBuildInitSteps:
+    - template: /eng/pipelines/steps/install-cross-build-prereqs.yml