diff --git a/constance/backends/database.py b/constance/backends/database.py
index 3b1ce30..592e3d9 100644
--- a/constance/backends/database.py
+++ b/constance/backends/database.py
@@ -76,11 +76,11 @@ class DatabaseBackend(Backend):
         else:
             value = None
         if value is None:
-            try:
-                value = self._model._default_manager.get(key=key).value
-            except (OperationalError, ProgrammingError, self._model.DoesNotExist):
+            match = self._model._default_manager.filter(key=key)
+            if len(match) == 0:
                 pass
             else:
+                value = match.first().value
                 if self._cache:
                     self._cache.add(key, value)
         return value
diff --git a/tests/backends/test_database.py b/tests/backends/test_database.py
index 267892b..d6e0a94 100644
--- a/tests/backends/test_database.py
+++ b/tests/backends/test_database.py
@@ -16,7 +16,7 @@ class TestDatabase(StorageTestsMixin, TestCase):
         with self.assertNumQueries(5):
             self.config.INT_VALUE
 
-        # Read again
+        # Read
         with self.assertNumQueries(1):
             self.config.INT_VALUE