diff --git a/script/test/20220201/MultiRegionScan.py b/script/test/20220201/MultiRegionScan.py
index 1266b3dd..1dcd9392 100644
--- a/script/test/20220201/MultiRegionScan.py
+++ b/script/test/20220201/MultiRegionScan.py
@@ -251,8 +251,11 @@ class SimpleDeviceReader(ReadonlyRegisterBase):
 
     the device must be set assigned to the device attribute.
     """
+    def initialize()
+        pass
+        
     def read(self):
-        print("simple device read", source)
+        print("simple device read")
         v = source.read()
         print(v)
         return v