diff --git a/awx/main/migrations/0055_v210_changes.py b/awx/main/migrations/0055_v210_changes.py
index a383a1b875..c72ea2986e 100644
--- a/awx/main/migrations/0055_v210_changes.py
+++ b/awx/main/migrations/0055_v210_changes.py
@@ -476,4 +476,4 @@ class Migration(SchemaMigration):
         }
     }
 
-    complete_apps = ['main']
\ No newline at end of file
+    complete_apps = ['main']
diff --git a/awx/main/models/__init__.py b/awx/main/models/__init__.py
index 2f9d583a24..2d0e8cac4e 100644
--- a/awx/main/models/__init__.py
+++ b/awx/main/models/__init__.py
@@ -14,6 +14,7 @@ from awx.main.models.inventory import *
 from awx.main.models.jobs import *
 from awx.main.models.schedules import *
 from awx.main.models.activity_stream import *
+from awx.main.models.ha import *
 
 # Monkeypatch Django serializer to ignore django-taggit fields (which break
 # the dumpdata command; see https://github.com/alex/django-taggit/issues/155).
diff --git a/awx/main/models/ha.py b/awx/main/models/ha.py
new file mode 100644
index 0000000000..40a7aed12c
--- /dev/null
+++ b/awx/main/models/ha.py
@@ -0,0 +1,18 @@
+# Copyright (c) 2014 Ansible, Inc.
+# All Rights Reserved.
+
+from django.db import models
+
+
+class Instance(models.Model):
+    """A model representing an Ansible Tower instance, primary or secondary,
+    running against this database.
+    """
+    uuid = models.CharField(max_length=40)
+    primary = models.BooleanField(default=False)
+    created = models.DateTimeField(auto_now_add=True)
+    modified = models.DateTimeField(auto_now=True)
+
+    class Meta:
+        app_label = 'main'
+