diff --git a/.github/workflows/wave.yml b/.github/workflows/wave.yml
index b645061ce4c..db24feab5f2 100644
--- a/.github/workflows/wave.yml
+++ b/.github/workflows/wave.yml
@@ -46,6 +46,8 @@ jobs:
       matrix: "${{ fromJson(needs.gen-matrix.outputs.matrix) }}"
     steps:
       - uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 # v4
+        with:
+          ref: ${{ github.event.pull_request.head.ref }}
 
       - uses: mamba-org/setup-micromamba@v1
         with: