diff --git a/benchmarks/data/test_tools.py b/benchmarks/data/test_tools.py
index 7270d369791be21c6aff0d0d3f3ab6eabe84ad97..0fbaa5167df2f73704b950b217d3c92dc7a4c18c 100644
--- a/benchmarks/data/test_tools.py
+++ b/benchmarks/data/test_tools.py
@@ -70,25 +70,25 @@ class TestPrepare(unittest.TestCase):
         _result = self.benchmark(prepare, data=xdata, info=info)
 
     @pytest.mark.benchmark(group="data-tools")
-    def test_to_xarray_np_units_01_2x1(self):
+    def test_prepare_np_units_01_2x1(self):
         time = dt.datetime(2000, 1, 1)
         info = fm.Info(time=time, grid=fm.UniformGrid((2, 1)), units="m")
         xdata = full(0.0, info).magnitude
-        _result = self.benchmark(to_xarray, data=xdata, info=info)
+        _result = self.benchmark(prepare, data=xdata, info=info)
 
     @pytest.mark.benchmark(group="data-tools")
-    def test_to_xarray_np_units_02_512x256(self):
+    def test_prepare_np_units_02_512x256(self):
         time = dt.datetime(2000, 1, 1)
         info = fm.Info(time=time, grid=fm.UniformGrid((512, 256)), units="m")
         xdata = full(0.0, info).magnitude
-        _result = self.benchmark(to_xarray, data=xdata, info=info)
+        _result = self.benchmark(prepare, data=xdata, info=info)
 
     @pytest.mark.benchmark(group="data-tools")
-    def test_to_xarray_np_units_03_2048x1024(self):
+    def test_prepare_np_units_03_2048x1024(self):
         time = dt.datetime(2000, 1, 1)
         info = fm.Info(time=time, grid=fm.UniformGrid((2048, 1024)), units="m")
         xdata = full(0.0, info).magnitude
-        _result = self.benchmark(to_xarray, data=xdata, info=info)
+        _result = self.benchmark(prepare, data=xdata, info=info)
 
     @pytest.mark.benchmark(group="data-tools-slow")
     def test_cp_prepare_np_01_2x1(self):