diff --git a/tests/data/pattern/1/r_2020-09-22T12:00:00_0.grib b/tests/data/pattern/1/r_2020-09-22T12-00-00_0.grib
similarity index 100%
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diff --git a/tests/data/pattern/1/r_2020-09-22T12:00:00_12.grib b/tests/data/pattern/1/r_2020-09-22T12-00-00_12.grib
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diff --git a/tests/data/pattern/1/r_2020-09-22T12:00:00_24.grib b/tests/data/pattern/1/r_2020-09-22T12-00-00_24.grib
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diff --git a/tests/data/pattern/1/r_2020-09-22T12:00:00_6.grib b/tests/data/pattern/1/r_2020-09-22T12-00-00_6.grib
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diff --git a/tests/data/pattern/1/t_2020-09-22T12:00:00_0.grib b/tests/data/pattern/1/t_2020-09-22T12-00-00_0.grib
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similarity index 100%
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similarity index 100%
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similarity index 100%
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diff --git a/tests/data/pattern/1/z_2020-09-22T12:00:00_0.grib b/tests/data/pattern/1/z_2020-09-22T12-00-00_0.grib
similarity index 100%
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diff --git a/tests/data/pattern/1/z_2020-09-22T12:00:00_12.grib b/tests/data/pattern/1/z_2020-09-22T12-00-00_12.grib
similarity index 100%
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diff --git a/tests/data/pattern/1/z_2020-09-22T12:00:00_24.grib b/tests/data/pattern/1/z_2020-09-22T12-00-00_24.grib
similarity index 100%
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diff --git a/tests/data/pattern/1/z_2020-09-22T12:00:00_6.grib b/tests/data/pattern/1/z_2020-09-22T12-00-00_6.grib
similarity index 100%
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diff --git a/tests/patterns/test_hive.py b/tests/patterns/test_hive.py
index 86b842deb..ae2cd7a29 100644
--- a/tests/patterns/test_hive.py
+++ b/tests/patterns/test_hive.py
@@ -139,7 +139,7 @@ def reset(self):
 
 def test_hive_sel_1():
     root = earthkit_test_data_file("pattern/1")
-    pattern = "{shortName}_{date:date(%Y-%m-%dT%H:%M)}_{step}.grib"
+    pattern = "{shortName}_{date:date(%Y-%m-%dT-H-%M)}_{step}.grib"
 
     ds = from_source("file-pattern", os.path.join(root, pattern), hive_partitioning=True)