diff --git a/src/agenda_culturel/models.py b/src/agenda_culturel/models.py
index 0094568..47b4d60 100644
--- a/src/agenda_culturel/models.py
+++ b/src/agenda_culturel/models.py
@@ -144,20 +144,16 @@ class DuplicatedEvents(models.Model):
             return result
 
 
-    def get_item_comparion(self, attr):
+    def get_item_comparison(self, attr):
         values = [getattr(e, attr) for e in self.get_duplicated()]
 
-        if len([x for x in [isinstance(i, list) for i in values] if x is True]) > 0:
-            hashable_values = "; ".join([str(v) for v in values])
-        else:
-            hashable_values = values
-        if len(set(hashable_values)) == 1:
+        if len(set([str(v) for v in values])) == 1:
             return { "similar": True, "key": attr, "values": values[0] }
         else:
             return { "similar": False, "key": attr, "values": values }
 
     def get_items_comparison(self):
-        return [self.get_item_comparion(e) for e in Event.data_fields(all=True)]
+        return [self.get_item_comparison(e) for e in Event.data_fields(all=True)]
 
 class Event(models.Model):