diff --git a/project.py b/project.py
index 6ebd979..51052b6 100644
--- a/project.py
+++ b/project.py
@@ -173,6 +173,7 @@ def get_top_module(yaml):
 def harden():
     # requires PDK, PDK_ROOT, OPENLANE_ROOT & OPENLANE_IMAGE_NAME to be set in local environment
     harden_cmd = 'docker run --rm -v $OPENLANE_ROOT:/openlane -v $PDK_ROOT:$PDK_ROOT -v $(pwd):/work -e PDK=$PDK -e PDK_ROOT=$PDK_ROOT -u $(id -u $USER):$(id -g $USER) $OPENLANE_IMAGE_NAME /bin/bash -c "./flow.tcl -overwrite -design /work/src -run_path /work/runs -tag wokwi"'
+    logging.debug(harden_cmd)
     env = os.environ.copy()
     p = subprocess.run(harden_cmd, shell=True, env=env)
     if p.returncode != 0: