diff --git a/METIS/tests/test_readout_exptime.py b/METIS/tests/test_readout_exptime.py
index 07acf123..f8183fab 100644
--- a/METIS/tests/test_readout_exptime.py
+++ b/METIS/tests/test_readout_exptime.py
@@ -11,7 +11,7 @@
 PLOTS = False
 
 
-class TestReadoutExptime:
+def test_readout_exptime():
     """Test whether giving exptime in readout() is respected.
 
     The implementation of Quantization and Autoexposure has lead