diff --git a/.github/workflows/nightly.yml b/.github/workflows/nightly.yml
index 7973c859..f4404229 100644
--- a/.github/workflows/nightly.yml
+++ b/.github/workflows/nightly.yml
@@ -23,6 +23,8 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v6
+        with:
+          submodules: recursive
 
       - name: Setup MSVC
         uses: ilammy/msvc-dev-cmd@v1
@@ -96,6 +98,8 @@ jobs:
     steps:
     - name: Checkout
       uses: actions/checkout@v6
+      with:
+        submodules: recursive
 
     - name: Setup MSVC
       uses: ilammy/msvc-dev-cmd@v1