diff --git a/tests/test_midi_tx.py b/tests/test_midi_tx.py
index ff2f71ac..47915189 100644
--- a/tests/test_midi_tx.py
+++ b/tests/test_midi_tx.py
@@ -19,8 +19,9 @@ MAX_CYCLES = 15000000
 def test_tx(capfd, config, build_midi):
 
     with open("dir.txt", "wt") as db:
-        import subprocess, shutil
-        output = subprocess.run("tree", capture_output=True, text=True) 
+        import subprocess
+        output = subprocess.run("tree", capture_output=True, text=True, shell=True) 
+        db.write(output.stdout)
 
     # Need tempdir as we use the same config files and this causes issues when using xdist 
     with tempdir() as tmpdirname: