diff --git a/eng/pipelines/common/global-build-job.yml b/eng/pipelines/common/global-build-job.yml
index 171d71960cdbf1..b38e965a50efdc 100644
--- a/eng/pipelines/common/global-build-job.yml
+++ b/eng/pipelines/common/global-build-job.yml
@@ -83,10 +83,10 @@ jobs:
       - name: _crossBuildPropertyArg
         value: /p:CrossBuild=${{ parameters.crossBuild }}
 
-      - ${{ if ne(parameters.jobParameters.crossrootfsDir, '') }}:
+      - ${{ if ne(parameters.crossrootfsDir, '') }}:
         # This is only required for cross builds.
         - name: ROOTFS_DIR
-          value: ${{ parameters.jobParameters.crossrootfsDir }}
+          value: ${{ parameters.crossrootfsDir }}
 
       - name: _cxx11Parameter
         ${{ if and(eq(parameters.osGroup, 'Linux'), eq(parameters.archType, 'arm64')) }}:
diff --git a/eng/pipelines/coreclr/perf_slow.yml b/eng/pipelines/coreclr/perf_slow.yml
index f9232de84640c2..041fdf6671709f 100644
--- a/eng/pipelines/coreclr/perf_slow.yml
+++ b/eng/pipelines/coreclr/perf_slow.yml
@@ -142,6 +142,7 @@ extends:
           - Linux_arm64
           jobParameters:
             buildArgs: -s mono+libs+host+packs -c $(_BuildConfig) /p:MonoEnableLLVM=true /p:MonoBundleLLVMOptimizer=true
+            crossrootfsDir: '/crossrootfs/arm64'  
             nameSuffix: AOT
             isOfficialBuild: false
             extraStepsTemplate: /eng/pipelines/common/upload-artifact-step.yml