diff --git a/openbis/source/java/ch/systemsx/cisd/openbis/generic/client/web/client/application/ui/deletion/DeletionGrid.java b/openbis/source/java/ch/systemsx/cisd/openbis/generic/client/web/client/application/ui/deletion/DeletionGrid.java
index 69570424e7455e0d5244f907cece8310edaf295e..4732eace24ffe23da1f3df4aa1aa3f57a83f2776 100644
--- a/openbis/source/java/ch/systemsx/cisd/openbis/generic/client/web/client/application/ui/deletion/DeletionGrid.java
+++ b/openbis/source/java/ch/systemsx/cisd/openbis/generic/client/web/client/application/ui/deletion/DeletionGrid.java
@@ -126,7 +126,7 @@ public class DeletionGrid extends TypedTableGrid<Deletion>
                                             deletions, createRefreshCallback(invoker));
                                 }
                             });
-        // TODO unsafe
+        deletePermanentlyButton.hide(); // FIXME rollback of deleted data sets is not possible
         addButton(deletePermanentlyButton);
         allowMultipleSelection(); // we allow deletion/revert of multiple deletions