diff --git a/.github/workflows/mshv-infra.yaml b/.github/workflows/mshv-infra.yaml
index 887a3ca4e..72a90548a 100644
--- a/.github/workflows/mshv-infra.yaml
+++ b/.github/workflows/mshv-infra.yaml
@@ -38,7 +38,7 @@ on:
         description: 'Private IP of the VM'
         value: ${{ jobs.infra-setup.outputs.PRIVATE_IP }}
 concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
   cancel-in-progress: true
 jobs:
   infra-setup: