diff --git a/src/wagtail_personalisation/adapters.py b/src/wagtail_personalisation/adapters.py
index b9d56da..3ec9c2c 100644
--- a/src/wagtail_personalisation/adapters.py
+++ b/src/wagtail_personalisation/adapters.py
@@ -164,7 +164,7 @@ class SessionSegmentsAdapter(BaseSegmentsAdapter):
         still apply to the requesting visitor.
 
         """
-        enabled_segments = Segment.objects.filter(status='enabled')
+        enabled_segments = Segment.objects.filter(status=Segment.STATUS_ENABLED)
         persistent_segments = enabled_segments.filter(persistent=True)
         session_segments = self.request.session['segments']
         rules = AbstractBaseRule.__subclasses__()
diff --git a/src/wagtail_personalisation/models.py b/src/wagtail_personalisation/models.py
index 34996a2..6b6453b 100644
--- a/src/wagtail_personalisation/models.py
+++ b/src/wagtail_personalisation/models.py
@@ -20,18 +20,22 @@ from wagtail_personalisation.utils import count_active_days
 @python_2_unicode_compatible
 class Segment(ClusterableModel):
     """The segment model."""
+    STATUS_ENABLED = 'enabled'
+    STATUS_DISABLED = 'disabled'
+
+    STATUS_CHOICES = (
+        (STATUS_ENABLED, 'Enabled'),
+        (STATUS_DISABLED, 'Disabled'),
+    )
+
     name = models.CharField(max_length=255)
     create_date = models.DateTimeField(auto_now_add=True)
     edit_date = models.DateTimeField(auto_now=True)
     enable_date = models.DateTimeField(null=True, editable=False)
     disable_date = models.DateTimeField(null=True, editable=False)
     visit_count = models.PositiveIntegerField(default=0, editable=False)
-    STATUS_CHOICES = (
-        ('enabled', 'Enabled'),
-        ('disabled', 'Disabled'),
-    )
-    status = models.CharField(max_length=20, choices=STATUS_CHOICES,
-                              default="enabled")
+    status = models.CharField(
+        max_length=20, choices=STATUS_CHOICES, default=STATUS_ENABLED)
     persistent = models.BooleanField(
         default=False, help_text=_("Should the segment persist between visits?"))
     match_any = models.BooleanField(
diff --git a/src/wagtail_personalisation/receivers.py b/src/wagtail_personalisation/receivers.py
index d9f381f..722f09d 100644
--- a/src/wagtail_personalisation/receivers.py
+++ b/src/wagtail_personalisation/receivers.py
@@ -12,11 +12,11 @@ def check_status_change(sender, instance, *args, **kwargs):
         original_status = ""
 
     if original_status != instance.status:
-        if instance.status == "enabled":
+        if instance.status == instance.STATUS_ENABLED:
             instance.enable_date = timezone.now()
             instance.visit_count = 0
             return instance
-        if instance.status == "disabled":
+        if instance.status == instance.STATUS_DISABLED:
             instance.disable_date = timezone.now()
 
 
diff --git a/src/wagtail_personalisation/templates/modeladmin/wagtail_personalisation/segment/dashboard.html b/src/wagtail_personalisation/templates/modeladmin/wagtail_personalisation/segment/dashboard.html
index c9d9fc4..257d8fc 100644
--- a/src/wagtail_personalisation/templates/modeladmin/wagtail_personalisation/segment/dashboard.html
+++ b/src/wagtail_personalisation/templates/modeladmin/wagtail_personalisation/segment/dashboard.html
@@ -72,9 +72,9 @@
 
                                         {% if user_can_create %}
                                         <ul class="block_actions">
-                                            {% if segment.status == "disabled" %}
+                                            {% if segment.status == segment.STATUS_DISABLED %}
                                                 <li><a href="{% url 'segment:toggle' segment.pk %}" title="{% trans "Enable this segment" %}">enable</a></li>
-                                            {% elif segment.status == "enabled" %}
+                                            {% elif segment.status == segment.STATUS_ENABLED %}
                                                 <li><a href="{% url 'segment:toggle' segment.pk %}" title="{% trans "Disable this segment" %}">disable</a></li>
                                             {% endif %}
                                             <li><a href="edit/{{ segment.pk }}" title="{% trans "Configure this segment" %}">configure this</a></li>
@@ -110,4 +110,4 @@
             {% endblock %}
         </div>
     </div>
-{% endblock %}
\ No newline at end of file
+{% endblock %}
diff --git a/src/wagtail_personalisation/views.py b/src/wagtail_personalisation/views.py
index 5222b1e..4dd2082 100644
--- a/src/wagtail_personalisation/views.py
+++ b/src/wagtail_personalisation/views.py
@@ -97,10 +97,10 @@ def toggle(request, segment_id):
     if request.user.has_perm('wagtailadmin.access_admin'):
         segment = get_object_or_404(Segment, pk=segment_id)
 
-        if segment.status == 'enabled':
-            segment.status = 'disabled'
-        elif segment.status == 'disabled':
-            segment.status = 'enabled'
+        if segment.status == Segment.STATUS_ENABLED:
+            segment.status = Segment.STATUS_DISABLED
+        elif segment.status == Segment.STATUS_DISABLED:
+            segment.status = Segment.STATUS_ENABLED
 
         segment.save()
 
diff --git a/src/wagtail_personalisation/wagtail_hooks.py b/src/wagtail_personalisation/wagtail_hooks.py
index 67fae28..6a4bf60 100644
--- a/src/wagtail_personalisation/wagtail_hooks.py
+++ b/src/wagtail_personalisation/wagtail_hooks.py
@@ -76,8 +76,8 @@ def serve_variation(page, request, serve_args, serve_kwargs):
 
     for segment in adapter.get_all_segments():
         try:
-            user_segment = Segment.objects.get(pk=segment['id'],
-                                               status='enabled')
+            user_segment = Segment.objects.get(
+                pk=segment['id'], status=Segment.STATUS_ENABLED)
         except Segment.DoesNotExist:
             user_segment = None
         if user_segment: