diff --git a/datastore_server/source/java/ch/systemsx/cisd/openbis/dss/generic/server/plugins/tasks/ArchiverTaskFactory.java b/datastore_server/source/java/ch/systemsx/cisd/openbis/dss/generic/server/plugins/tasks/ArchiverTaskFactory.java
index 84df89c572971fe831a23a8c250c70f578145cf6..e25e53f34dbb98a9dd0d3a8de7e75225f5c603e4 100644
--- a/datastore_server/source/java/ch/systemsx/cisd/openbis/dss/generic/server/plugins/tasks/ArchiverTaskFactory.java
+++ b/datastore_server/source/java/ch/systemsx/cisd/openbis/dss/generic/server/plugins/tasks/ArchiverTaskFactory.java
@@ -60,7 +60,7 @@ public class ArchiverTaskFactory
 
     public IArchiverTask createInstance(File storeRoot)
     {
-        if (isArchiverConfigured())
+        if (isArchiverConfigured() == false)
         {
             throw new ConfigurationFailureException("Archiver class is not configured.");
         }