diff --git a/bireme/events/views.py b/bireme/events/views.py
index e3176b91..a9d1f119 100644
--- a/bireme/events/views.py
+++ b/bireme/events/views.py
@@ -165,8 +165,6 @@ def create_edit_event(request, **kwargs):
             formset_keyword.save()
             formset_thematic.save()
 
-            # save many-to-many relation fields
-            form.save_m2m()
             # update solr index
             form.save()