diff --git a/script/device/Image.py b/script/device/Image.py
index 056b1bf..7e5232f 100644
--- a/script/device/Image.py
+++ b/script/device/Image.py
@@ -125,5 +125,6 @@ add_device( Image("image", pixel), True)
 
 image.matrix.polling = 10
 add_device(RegisterMatrixSource("detector_image", image.matrix), True)      
+detector_image.monitored = True