diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index 3a6f4f802..059443e71 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -18,6 +18,7 @@ jobs:
   msys2:
     name: ${{ matrix.name }}
     runs-on: ${{ matrix.os }}
+    if: ${{ github.repository_owner == 'haproxy' || github.event_name == 'workflow_dispatch' }}
     defaults:
       run:
         shell: msys2 {0}