diff --git a/.forgejo/workflows/non-lab.yml b/.forgejo/workflows/non-lab.yml
index 6c4b0a6..a7cf49a 100644
--- a/.forgejo/workflows/non-lab.yml
+++ b/.forgejo/workflows/non-lab.yml
@@ -12,5 +12,5 @@ jobs:
             non-lab
       - run: pwd
       - name: tree
-        run: tree
+        run: apt update; apt install tree; tree
       - run: env