diff --git a/screening/source/java/ch/systemsx/cisd/openbis/dss/etl/dto/api/v1/SimpleImageDataConfig.java b/screening/source/java/ch/systemsx/cisd/openbis/dss/etl/dto/api/v1/SimpleImageDataConfig.java
index ee1ba7dfb08fa1b4920d13700cf73d1c052ef357..10c6c9ac0aa0b95a0f27ebdf2c4f434c06035356 100644
--- a/screening/source/java/ch/systemsx/cisd/openbis/dss/etl/dto/api/v1/SimpleImageDataConfig.java
+++ b/screening/source/java/ch/systemsx/cisd/openbis/dss/etl/dto/api/v1/SimpleImageDataConfig.java
@@ -341,7 +341,7 @@ abstract public class SimpleImageDataConfig
 
     /**
      * Sets parameters for the 'convert' command line tool, which will be used to apply an image
-     * transformation before persisting the images in the data store.
+     * transformation on the fly when an image is fetched.
      */
     public void setConvertTransformationCliArguments(String convertTransformationCliArguments)
     {