diff --git a/.github/workflows/deployment.yml b/.github/workflows/deployment.yml
index faf8b2c12d6..dfd000fa14d 100644
--- a/.github/workflows/deployment.yml
+++ b/.github/workflows/deployment.yml
@@ -141,6 +141,8 @@ jobs:
           channel-priority: true
       - name: setup tmate session
         uses: mxschmitt/action-tmate@v3
+        env:
+          CVMFS_PROXY_BASE64: ${{ secrets.CVMFS_PROXY_BASE64 }}
       - name: Deploy on CVMFS
         env:
           CVMFS_PROXY_BASE64: ${{ secrets.CVMFS_PROXY_BASE64 }}