diff --git a/.github/workflows/test_win64.yaml b/.github/workflows/test_win64.yaml
index d2a830b3b..64ea0cedd 100644
--- a/.github/workflows/test_win64.yaml
+++ b/.github/workflows/test_win64.yaml
@@ -4,6 +4,8 @@ on:
   push:
     branches:
       - test
+  pull_request:
+    branches: [ master ]
   schedule:
     - cron: "0 4 * * *"
   workflow_dispatch: