diff --git a/dspace-api/src/main/java/org/dspace/workflowbasic/BasicWorkflowServiceImpl.java b/dspace-api/src/main/java/org/dspace/workflowbasic/BasicWorkflowServiceImpl.java
index bc23be76c7..fe6d08b5bb 100644
--- a/dspace-api/src/main/java/org/dspace/workflowbasic/BasicWorkflowServiceImpl.java
+++ b/dspace-api/src/main/java/org/dspace/workflowbasic/BasicWorkflowServiceImpl.java
@@ -1018,6 +1018,9 @@ public class BasicWorkflowServiceImpl implements BasicWorkflowService
 
     @Override
     public void deleteCollection(Context context, Collection collection) throws SQLException, IOException, AuthorizeException {
+        collection.setWorkflowGroup(1, null);
+        collection.setWorkflowGroup(2, null);
+        collection.setWorkflowGroup(3, null);
         workflowItemService.deleteByCollection(context, collection);
     }