diff --git a/nailgun/nailgun/transactions/manager.py b/nailgun/nailgun/transactions/manager.py
index 017ed2e754..7be79fda87 100644
--- a/nailgun/nailgun/transactions/manager.py
+++ b/nailgun/nailgun/transactions/manager.py
@@ -649,14 +649,14 @@ def _update_transaction(transaction, status, progress, message):
     data = {}
     if status:
         data['status'] = status
-    if progress:
-        data['progress'] = progress
     if message:
         data['message'] = message
+    data['progress'] = _calculate_progress(transaction, progress)
     if data:
         objects.Transaction.update(transaction, data)
 
-    if transaction.parent and progress:
+    if transaction.parent and data['progress']:
+        logger.debug("Updating parent task: %s.", transaction.parent.uuid)
         siblings = transaction.parent.subtasks
         total_progress = sum(x.progress for x in siblings)
         objects.Transaction.update(transaction.parent, {
@@ -664,6 +664,14 @@ def _update_transaction(transaction, status, progress, message):
         })
 
 
+def _calculate_progress(transaction, progress):
+    if progress is not None:
+        return progress
+    else:
+        return helpers.TaskHelper.recalculate_deployment_task_progress(
+            transaction)
+
+
 def _update_cluster_status(transaction):
     if transaction.dry_run:
         return