diff --git a/tests.py b/tests.py
index be7c6b288ba46eee74b08e285e281e79994de51f..03b41cf6e13c1cb45107ddce51fc8b0b093d4fcf 100644
--- a/tests.py
+++ b/tests.py
@@ -31,7 +31,7 @@ def test_prepare_environment(tmp_path):
     # prepare_env is run when cmd is not specified, we can test cmd='prepare'
     # and cmd=None to check both cases
 
-    script_dir = tmp_path / "test_prepare_env"
+    script_dir = tmp_path / "mpsd_opt" / "linux_debian_11"
     spack_environments = "spack-environments"
     mpsd_release_to_test = "dev-23a"
     release_base_dir = script_dir / mpsd_release_to_test