diff --git a/.travis.yml b/.travis.yml
index 4ffc702..42a313c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -12,6 +12,9 @@ service:
 
 addons:
   postgresql: 9.5
+  apt:
+    packages:
+    - libsqlite3-mod-spatialite
   
 before_install:
   - export PYTHONPATH=$HOME/builds/audaciouscode/pdk
diff --git a/models.py b/models.py
index b7123f1..6a610db 100644
--- a/models.py
+++ b/models.py
@@ -41,7 +41,10 @@ def install_supports_jsonfield():
     global DB_SUPPORTS_JSON # pylint: disable=global-statement
 
     if True and DB_SUPPORTS_JSON is None:
-        DB_SUPPORTS_JSON = connection.pg_version >= 90400
+        try:
+            DB_SUPPORTS_JSON = connection.pg_version >= 90400
+        except AttributeError:
+            DB_SUPPORTS_JSON = False
 
     return DB_SUPPORTS_JSON
 
diff --git a/templates/tests/point_hz_test.txt b/templates/tests/point_hz_test.txt
new file mode 100644
index 0000000..8434d47
--- /dev/null
+++ b/templates/tests/point_hz_test.txt
@@ -0,0 +1,2 @@
+{% load passive_data_kit %}
+{% point_hz source %}
\ No newline at end of file
diff --git a/templatetags/passive_data_kit.py b/templatetags/passive_data_kit.py
index 0464dc5..14c5059 100644
--- a/templatetags/passive_data_kit.py
+++ b/templatetags/passive_data_kit.py
@@ -99,6 +99,9 @@ def render(self, context):
 
         frequency = source.point_frequency()
 
+        if frequency is None:
+            frequency = 0
+
         value = "{:10.3f}".format(frequency) + " Hz"
 
         if frequency < 1.0:
diff --git a/test_templatetags.py b/test_templatetags.py
new file mode 100644
index 0000000..91e6254
--- /dev/null
+++ b/test_templatetags.py
@@ -0,0 +1,20 @@
+from django.template.loader import render_to_string
+from django.test import TestCase
+
+from .models import DataSource
+
+class PointsHzTestCase(TestCase):
+    def setUp(self):
+        DataSource.objects.create(name='PointsHz Test User', identifier='points-hz-test')
+
+    def test_tests_working(self):
+        context = {
+            'source': DataSource.objects.get(identifier='points-hz-test') 
+        }
+
+        result = render_to_string('tests/point_hz_test.txt', context)
+
+        self.assertEqual('<span data-toggle="tooltip" data-placement="top" title="     0.000 samples per week">     0.000 mHz</span>', result.strip())
+
+    def tearDown(self):
+        DataSource.objects.get(identifier='points-hz-test').delete()
diff --git a/travis_settings.py b/travis_settings.py
index dbbcc29..16140d2 100644
--- a/travis_settings.py
+++ b/travis_settings.py
@@ -72,6 +72,10 @@
     }
 }
 
+if 'test' in sys.argv or 'test_coverage' in sys.argv: #Covers regular testing and django-coverage
+    DATABASES['default']['ENGINE'] = 'django.contrib.gis.db.backends.spatialite'
+    SPATIALITE_LIBRARY_PATH = 'mod_spatialite'
+
 # Internationalization
 # https://docs.djangoproject.com/en/1.8/topics/i18n/