diff --git a/partitioned-heat-conduction/doConvergenceStudy.py b/partitioned-heat-conduction/doConvergenceStudy.py
index a9781152d..74599fc7f 100644
--- a/partitioned-heat-conduction/doConvergenceStudy.py
+++ b/partitioned-heat-conduction/doConvergenceStudy.py
@@ -180,8 +180,7 @@ def do_run(dt, n_substeps=1, precice_config_params=default_precice_config_params
 
     import git
 
-    repo_base = Path(__file__).parent / ".."
-    repo = git.Repo(repo_base)
+    repo = git.Repo(__file__, search_parent_directories=True)
     chash = str(repo.head.commit)[:7]
     if repo.is_dirty():
         chash += "-dirty"