diff --git a/app/main.py b/app/main.py
index fdb60a4c234f268525af8782ecf729fa964b15cf..88c0aba4a42c22afab14460b10b97c4532c55bf6 100644
--- a/app/main.py
+++ b/app/main.py
@@ -58,13 +58,14 @@ def cocal_task(db, state, cocal_session):
 
     # wait for user upload to finish
     upload_is_ready = cocal.wait_for_user_upload(timeout=10)
+
     
     # continue 
     if upload_is_ready:
         
         # do the necessary calculations
-        # cocal.perform_dummy_computations()
-        cocal.perform_computations()
+        cocal.perform_dummy_computations()
+        # cocal.perform_computations()
 
         # generate (dummy) DCC
         # cocal.generate_dummy_dcc()
@@ -76,6 +77,7 @@ def cocal_task(db, state, cocal_session):
         # set result status
         cocal_session.result_state = "ready"
         cocal_session.result_date = datetime.datetime.now()
+        cocal_session.commit()
         db.commit()
 
     # log timeout error if no upload available