diff --git a/src/agenda_culturel/views.py b/src/agenda_culturel/views.py
index 2da0733..1822fd0 100644
--- a/src/agenda_culturel/views.py
+++ b/src/agenda_culturel/views.py
@@ -324,7 +324,7 @@ class EventUpdateView(
         return kwargs
 
     def get_success_message(self, cleaned_data):
-        txt = _(" A message has been sent to the person who proposed the event.") if hasattr(self, "with_msg") else ""
+        txt = _(" A message has been sent to the person who proposed the event.") if hasattr(self, "with_msg") and self.with_msg else ""
         return mark_safe(_('The event has been successfully modified.') + txt)
 
 
@@ -374,7 +374,7 @@ class EventModerateView(
     form_class = EventModerateForm
 
     def get_success_message(self, cleaned_data):
-        txt = _(" A message has been sent to the person who proposed the event.") if hasattr(self, "with_msg") else ""
+        txt = _(" A message has been sent to the person who proposed the event.") if hasattr(self, "with_msg") and self.with_msg else ""
         return mark_safe(_('The event <a href="{}">{}</a> has been moderated with success.').format(self.object.get_absolute_url(), self.object.title) + txt)