diff --git a/datastore_server/source/java/ch/systemsx/cisd/openbis/dss/generic/server/plugins/jython/IPluginScriptRunnerFactory.java b/datastore_server/source/java/ch/systemsx/cisd/openbis/dss/generic/server/plugins/jython/IPluginScriptRunnerFactory.java
index 175f96eaa1f2b6c2d031a034708bf67facea4ec9..c0781268c48caec0c3e088fbc2ad1364f93c47e6 100644
--- a/datastore_server/source/java/ch/systemsx/cisd/openbis/dss/generic/server/plugins/jython/IPluginScriptRunnerFactory.java
+++ b/datastore_server/source/java/ch/systemsx/cisd/openbis/dss/generic/server/plugins/jython/IPluginScriptRunnerFactory.java
@@ -17,11 +17,12 @@
 package ch.systemsx.cisd.openbis.dss.generic.server.plugins.jython;
 
 import ch.systemsx.cisd.openbis.dss.generic.shared.DataSetProcessingContext;
+import ch.systemsx.cisd.openbis.generic.shared.basic.ISerializable;
 
 /**
  * @author Piotr Buczek
  */
-public interface IPluginScriptRunnerFactory
+public interface IPluginScriptRunnerFactory extends ISerializable
 {
     IReportingPluginScriptRunner createReportingPluginRunner(DataSetProcessingContext context);
 
diff --git a/datastore_server/source/java/ch/systemsx/cisd/openbis/dss/generic/server/plugins/jython/PluginScriptRunnerFactory.java b/datastore_server/source/java/ch/systemsx/cisd/openbis/dss/generic/server/plugins/jython/PluginScriptRunnerFactory.java
index 36489f3953dd109d321398f7ded32ea13202bdea..d9fbdd21f07fa5c314a6ba27393cbdf7ad89d710 100644
--- a/datastore_server/source/java/ch/systemsx/cisd/openbis/dss/generic/server/plugins/jython/PluginScriptRunnerFactory.java
+++ b/datastore_server/source/java/ch/systemsx/cisd/openbis/dss/generic/server/plugins/jython/PluginScriptRunnerFactory.java
@@ -41,6 +41,8 @@ import ch.systemsx.cisd.openbis.generic.shared.managed_property.api.ISimpleTable
  */
 class PluginScriptRunnerFactory implements IPluginScriptRunnerFactory
 {
+    private static final long serialVersionUID = 1L;
+
     private static final Logger operationLog = LogFactory.getLogger(LogCategory.OPERATION,
             PluginScriptRunnerFactory.class);