diff --git a/.github/workflows/ci-reusable.yml b/.github/workflows/ci-reusable.yml
index eaed3d2b..1a2d856c 100644
--- a/.github/workflows/ci-reusable.yml
+++ b/.github/workflows/ci-reusable.yml
@@ -30,6 +30,7 @@ jobs:
     steps:
       - name: Prefer IPv4 over IPv6 in prefix policies
         if: matrix.os == 'windows'
+        shell: cmd
         run: |
           netsh interface ipv6 set prefix ::/96 60 3
           netsh interface ipv6 set prefix ::ffff:0:0/96 55 4