diff --git a/screening/dist/tarball/installer/dropboxes/simple-dropbox.py b/screening/dist/tarball/installer/dropboxes/simple-dropbox.py
index be28a70d26a7864690f586e6bb6d4b2f316ef239..325e3f9535290d119ebf6a0e5af8dd9dac16483f 100644
--- a/screening/dist/tarball/installer/dropboxes/simple-dropbox.py
+++ b/screening/dist/tarball/installer/dropboxes/simple-dropbox.py
@@ -2,7 +2,8 @@
 # This is an example Jython dropbox for importing HCS image datasets
  
 import os
-from ch.systemsx.cisd.openbis.dss.etl.dto.api.v1 import *
+from ch.systemsx.cisd.openbis.dss.etl.dto.api.v1 import SimpleImageDataConfig
+from ch.systemsx.cisd.openbis.dss.etl.dto.api.v1 import ImageMetadata
      
 class MyImageDataSetConfig(SimpleImageDataConfig):
     def extractImageMetadata(self, imagePath):