diff --git a/tests/conftest.py b/tests/conftest.py
index 920de68..87a35e5 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -361,12 +361,9 @@ def nwp_mo_global_data(tmp_path_factory, time_before_present):
 
     # Load dataset which only contains coordinates, but no data
     ds = xr.open_zarr(
-        f"{os.path.dirname(os.path.abspath(__file__))}/test_data/nwp-no-data_gfs.zarr"
+        f"{os.path.dirname(os.path.abspath(__file__))}/test_data/nwp-no-data.zarr"
     )
 
-    # rename dimension init_time_utc to init_time
-    ds = ds.rename({"init_time_utc": "init_time"})
-
     # Last t0 to at least 4 hours ago and floor to 3-hour interval
     t0_datetime_utc = time_before_present(dt.timedelta(hours=0)).floor("3h")
     t0_datetime_utc = t0_datetime_utc - dt.timedelta(hours=4)