diff --git a/src/yunohost/hook.py b/src/yunohost/hook.py
index 53ed5f2e5..80afa4890 100644
--- a/src/yunohost/hook.py
+++ b/src/yunohost/hook.py
@@ -400,6 +400,9 @@ def _hook_exec_bash(path, args, chdir, env, return_format, loggers):
     _env = os.environ.copy()
     _env.update(env)
 
+    # FIXME : this is a temporary debug to better understand why the test are failing on the CI but not when ran manually...
+    logger.debug(_env)
+
     returncode = call_async_output(
         cmd, loggers, shell=True, cwd=chdir,
         stdinfo=stdinfo, env=_env