diff --git a/src/agenda_culturel/forms.py b/src/agenda_culturel/forms.py
index ba93ad1..b152d91 100644
--- a/src/agenda_culturel/forms.py
+++ b/src/agenda_culturel/forms.py
@@ -579,21 +579,22 @@ class MergeDuplicates(Form):
                 ("event_" + str(e.pk), _("Value of the selected version"))
                 for e in self.events
             ]
+            initial = "event_" + str(self.event.pk)
         else:
             choices = [
                 ("event_" + str(e.pk), _("Value of version {}").format(e.pk)) for e in self.events
             ]
-
+            initial = choices[0][0]
         for f in self.duplicates.get_items_comparison():
             if not f["similar"]:
                 if f["key"] in MergeDuplicates.checkboxes_fields:
                     self.fields[f["key"]] = MultipleChoiceField(choices=choices)
-                    self.fields[f["key"]].initial = choices[0][0]
+                    self.fields[f["key"]].initial = initial
                 else:
                     self.fields[f["key"]] = ChoiceField(
                         widget=RadioSelect, choices=choices
                     )
-                    self.fields[f["key"]].initial = choices[0][0]
+                    self.fields[f["key"]].initial = initial
 
     def as_grid(self):
         result = '<div class="grid">'