diff --git a/.woodpecker/cd.yaml b/.woodpecker/cd.yaml
index 0279896f..529d45e4 100644
--- a/.woodpecker/cd.yaml
+++ b/.woodpecker/cd.yaml
@@ -16,7 +16,7 @@ steps:
         echo "$CD_SSH_KEY" > ~/.ssh/id_ed25519
         ls -l ~/.ssh/id_ed25519
         chmod 600 ~/.ssh/id_ed25519
-      - bash -c "strace -f -o ssh-agent.log ssh-agent -s"
+      - bash -c "nix-shell -p strace --run 'strace -f -o ssh-agent.log ssh-agent -s'"
       - cat ssh-agent.log
       - |
         eval "$(ssh-agent -s)"