diff --git a/datastore_server/source/java/ch/systemsx/cisd/openbis/dss/generic/server/ftp/FtpServerConfig.java b/datastore_server/source/java/ch/systemsx/cisd/openbis/dss/generic/server/ftp/FtpServerConfig.java
index 6f0236e7a92872c5f5b274eb4ebe8fcecac73ba3..4546c58fa2e4d15380b797119af2c3ac226f3f4c 100644
--- a/datastore_server/source/java/ch/systemsx/cisd/openbis/dss/generic/server/ftp/FtpServerConfig.java
+++ b/datastore_server/source/java/ch/systemsx/cisd/openbis/dss/generic/server/ftp/FtpServerConfig.java
@@ -99,7 +99,7 @@ public class FtpServerConfig
 
     private String keyStorePassword;
 
-    private String dataSetDisplayTemplate;
+    private String dataSetDisplayTemplate = "";
 
     private int maxThreads;