diff --git a/apps/activity/forms.py b/apps/activity/forms.py
index b6cf098b..70ff57f3 100644
--- a/apps/activity/forms.py
+++ b/apps/activity/forms.py
@@ -15,12 +15,6 @@ from .models import Activity, Guest
 
 
 class ActivityForm(forms.ModelForm):
-    def clean_date_start(self):
-        date_start = self.cleaned_data["date_start"]
-        if not self.instance.pk and date_start < timezone.now():
-            self.add_error("date_start", _("You can't create a past activity."))
-        return date_start
-
     def clean_date_end(self):
         date_end = self.cleaned_data["date_end"]
         date_start = self.cleaned_data["date_start"]
diff --git a/locale/de/LC_MESSAGES/django.po b/locale/de/LC_MESSAGES/django.po
index 7ff316e1..b4f194c1 100644
--- a/locale/de/LC_MESSAGES/django.po
+++ b/locale/de/LC_MESSAGES/django.po
@@ -23,10 +23,6 @@ msgstr ""
 msgid "activity"
 msgstr ""
 
-#: apps/activity/forms.py:21
-msgid "You can't create a past activity."
-msgstr ""
-
 #: apps/activity/forms.py:28 apps/activity/models.py:127
 msgid "The end date must be after the start date."
 msgstr ""
diff --git a/locale/fr/LC_MESSAGES/django.po b/locale/fr/LC_MESSAGES/django.po
index 42787f9a..7ea9abf0 100644
--- a/locale/fr/LC_MESSAGES/django.po
+++ b/locale/fr/LC_MESSAGES/django.po
@@ -23,10 +23,6 @@ msgstr ""
 msgid "activity"
 msgstr "activité"
 
-#: apps/activity/forms.py:21
-msgid "You can't create a past activity."
-msgstr "Vous ne pouvez pas créer une activité dans le passé."
-
 #: apps/activity/forms.py:28 apps/activity/models.py:127
 msgid "The end date must be after the start date."
 msgstr "La date de fin doit être après celle de début."