diff --git a/esbo_etc/classes/Config.py b/esbo_etc/classes/Config.py
index 17630ba..ab4be1f 100644
--- a/esbo_etc/classes/Config.py
+++ b/esbo_etc/classes/Config.py
@@ -191,4 +191,4 @@ class Configuration(object):
                   "' does not exist. Did you mean '" + difflib.get_close_matches(conf.instrument.sensor.type,
                                                                                  dir(sensor), 1)[0] + "'?")
         mes = getattr(sensor, conf.instrument.sensor.type).check_config(conf.instrument.sensor)
-        mes is not None and error("Configuration check: instrument -> sensor: " + mes)
+        mes is not None and error("Configuration check: instrument -> sensor -> " + mes)
diff --git a/tests/data/esbo-etc_defaults.xml b/tests/data/esbo-etc_defaults.xml
index 68542cb..3fdbcae 100644
--- a/tests/data/esbo-etc_defaults.xml
+++ b/tests/data/esbo-etc_defaults.xml
@@ -43,7 +43,7 @@
             <pixel_geometry val="1024, 1024" val_unit="pix" comment="Pixel geometry"/>
             <center_offset val="0, 0" val_unit="um" comment="Shift of the array center"/>
             <pixel>
-                <quantum_efficiency val="data/ccd/qe.csv" comment="Quantum efficiency of the detector pixel"/>
+                <quantum_efficiency val="data/ccd/PCO-Edge-42-QE.txt" comment="Quantum efficiency of the detector pixel"/>
                 <pixel_size val="6.5" val_unit="um"/>
                 <dark_current val="20" val_unit="electron / (pix * s)" comment="Detector dark current"/>
                 <sigma_read_out val="10.0" val_unit="electron(1/2) / pix" comment="Detector readout noise in e-rms"/>