diff --git a/script/test/20220201/MultiRegionScan.py b/script/test/20220201/MultiRegionScan.py
index 8f7474bb..8d847db7 100644
--- a/script/test/20220201/MultiRegionScan.py
+++ b/script/test/20220201/MultiRegionScan.py
@@ -252,6 +252,7 @@ class SimpleDeviceReader(Readable):
     the device must be set assigned to the device attribute.
     """
     def read(self):
+        print("simple device read")
         v = source.read()
         print(v)
         return v