diff --git a/tests/test_csm.py b/tests/test_csm.py
index d22d529a10f87fd44d63326124675143bd7dc4f6..4625588fab37b31c50d23254af40b6d16b4c7b5c 100644
--- a/tests/test_csm.py
+++ b/tests/test_csm.py
@@ -9,8 +9,8 @@ from knoten import csm
 @pytest.fixture
 def mock_dem():
     mock_dem = mock.MagicMock(spec_set=GeoDataset)
-    #mock_dem.read_array.return_value = 100
-    #mock_dem.latlon_to_pixel.return_value = (0.5,0.5)
+    mock_dem.read_array.return_value = 100
+    mock_dem.latlon_to_pixel.return_value = (0.5,0.5)
     return mock_dem
 
 @pytest.fixture