diff --git a/.github/workflows/regression_tests.yml b/.github/workflows/regression_tests.yml
index 7bac12b9c..acc6ed2d8 100644
--- a/.github/workflows/regression_tests.yml
+++ b/.github/workflows/regression_tests.yml
@@ -35,6 +35,13 @@ jobs:
           path: cloudsc
           ref: develop
 
+      - name: Clone CLOUDSC2 TL AD
+        uses: actions/checkout@v4
+        with:
+          repository: ecmwf-ifs/dwarf-p-cloudsc2-tl-ad
+          path: cloudsc2_tl_ad
+          ref: develop
+
       - name: Clone ECWAM
         uses: actions/checkout@v4
         with:
@@ -83,6 +90,7 @@ jobs:
       - name: Run CLOUDSC and ECWAM regression tests
         env:
           CLOUDSC_DIR: ${{ github.workspace }}/cloudsc
+          CLOUDSC2_DIR: ${{ github.workspace }}/cloudsc2_tl_ad
           ECWAM_DIR: ${{ github.workspace }}/ecwam
           OMP_STACKSIZE: 4G
         run: |