diff --git a/backend/experiment/rules/kuiper_2020.py b/backend/experiment/rules/kuiper_2020.py
index e272034f5..a0dfbabde 100644
--- a/backend/experiment/rules/kuiper_2020.py
+++ b/backend/experiment/rules/kuiper_2020.py
@@ -48,7 +48,7 @@ def plan_sections(self, session):
             old_sections_2 = \
                 [session.
                  section_from_any_song(
-                     {'group': s.group, 'tag': 3 - s.tag}
+                     {'group': s.group, 'tag': 3 - int(s.tag)}
                  )
                  for s in old_sections_1]
         free_sections = [session.section_from_song(s) for s in free_songs]
@@ -143,7 +143,6 @@ def next_heard_before_action(self, session):
             },
             question=_("Did you hear this song in previous rounds?"),
             result_id=result_pk,
-            scoring_rule='REACTION_TIME',
             style=STYLE_BOOLEAN_NEGATIVE_FIRST,
             submits=True)])
         config = {