diff --git a/modoboa/core/app_settings.py b/modoboa/core/app_settings.py
index 0f69de5ad..8934c9773 100644
--- a/modoboa/core/app_settings.py
+++ b/modoboa/core/app_settings.py
@@ -72,13 +72,6 @@ class GeneralParametersForm(param_forms.AdminParametersForm):
         widget=forms.TextInput(attrs={"class": "form-control"})
     )
 
-    secret_key = forms.CharField(
-        label=ugettext_lazy("Secret key"),
-        initial=random_key(),
-        help_text=ugettext_lazy("Key used to encrypt/decrypt passwords"),
-        widget=forms.TextInput(attrs={"class": "form-control"})
-    )
-
     default_password = forms.CharField(
         label=ugettext_lazy("Default password"),
         initial="password",
@@ -348,13 +341,6 @@ class GeneralParametersForm(param_forms.AdminParametersForm):
         super(GeneralParametersForm, self).__init__(*args, **kwargs)
         self.fields["default_top_redirection"].choices = enabled_applications()
 
-    def clean_secret_key(self):
-        if len(self.cleaned_data["secret_key"]) not in [16, 24, 32]:
-            raise forms.ValidationError(
-                _("Key must be either 16, 24, or 32 bytes long")
-            )
-        return self.cleaned_data["secret_key"]
-
     def clean_ldap_user_dn_template(self):
         tpl = self.cleaned_data["ldap_user_dn_template"]
         try:
diff --git a/modoboa/core/management/commands/load_initial_data.py b/modoboa/core/management/commands/load_initial_data.py
index f9eed3395..956fde635 100644
--- a/modoboa/core/management/commands/load_initial_data.py
+++ b/modoboa/core/management/commands/load_initial_data.py
@@ -49,14 +49,6 @@ class Command(BaseCommand):
             models.ObjectAccess.objects.create(
                 user=admin, content_object=admin, is_owner=True)
 
-        lc = models.LocalConfig.objects.first()
-        condition = (
-            "core" not in lc._parameters or
-            "secret_key" not in lc._parameters["core"])
-        if condition:
-            lc.parameters.set_value("secret_key", random_key())
-            lc.save()
-
         groups = list(constants.PERMISSIONS.keys())
         for groupname in groups:
             group, created = Group.objects.get_or_create(name=groupname)
diff --git a/modoboa/core/tests/test_core.py b/modoboa/core/tests/test_core.py
index 5efa811c5..73ffa4b11 100644
--- a/modoboa/core/tests/test_core.py
+++ b/modoboa/core/tests/test_core.py
@@ -58,13 +58,6 @@ class ManagementCommandsTestCase(TestCase):
         self.assertTrue(
             self.client.login(username="modoadmin", password="password"))
 
-    def test_set_secret_key(self):
-        """Use dedicated option."""
-        management.call_command("load_initial_data")
-        lc = models.LocalConfig.objects.first()
-        self.assertIn("core", lc._parameters)
-        self.assertIn("secret_key", lc._parameters["core"])
-
     def test_clean_logs(self):
         """Run cleanlogs command."""
         log1 = factories.LogFactory()