diff --git a/openbis/source/java/ch/systemsx/cisd/openbis/generic/client/web/client/application/ui/entity_type/NewEntityTypeForm.java b/openbis/source/java/ch/systemsx/cisd/openbis/generic/client/web/client/application/ui/entity_type/NewEntityTypeForm.java
index 899fc78c08c1534ea12e903aadd711af3631a03a..0800b3341e2190d965d2a3ba76601649ceb44c9f 100644
--- a/openbis/source/java/ch/systemsx/cisd/openbis/generic/client/web/client/application/ui/entity_type/NewEntityTypeForm.java
+++ b/openbis/source/java/ch/systemsx/cisd/openbis/generic/client/web/client/application/ui/entity_type/NewEntityTypeForm.java
@@ -329,6 +329,8 @@ public class NewEntityTypeForm extends ContentPanel
 
             newTypeWithAssigments.getAssigments().add(assigment);
         }
+
+        newTypeWithAssigments.updateOrdinalToGridOrder(); // Fixes gaps between positions for types created with the old UI.
     }
 
     private Button getSaveButton()