diff --git a/dropdown/helpers.py b/dropdown/helpers.py
index e055b31..e5c396b 100644
--- a/dropdown/helpers.py
+++ b/dropdown/helpers.py
@@ -20,6 +20,7 @@ def from_model(
     q_filter: models.Q = None,
     no_limit=True,
     context_fields: typing.List[str] = None,
+    select_related: typing.List[str] = None,
 ) -> typing.Tuple[typing.List[types.DropdownItem], int]:
     """
     Get dropdown items from given model
@@ -30,6 +31,7 @@ def from_model(
     @param q_filter: additional filter
     @param no_limit: no items limit (overriding `LIMIT` in settings)
     @param context_fields: additional fields to be appear in context in each dropdown item
+    @param select_related: fields to select related
     @return: tuple of dropdown items and item count
     """
     if context_fields is None:
@@ -38,6 +40,11 @@ def from_model(
     # initial queryset
     queryset = model.objects.all()
 
+    # select related
+    # NOTE: prefetch related is not supported
+    if select_related is not None:
+        queryset = queryset.select_related(*select_related)
+
     # filter
     if q_filter:
         queryset = queryset.filter(q_filter)
diff --git a/tests/test_registry.py b/tests/registry/test_register.py
similarity index 100%
rename from tests/test_registry.py
rename to tests/registry/test_register.py
diff --git a/tests/utils/test_dot_to_relation.py b/tests/utils/test_dot_to_relation.py
new file mode 100644
index 0000000..b47eda2
--- /dev/null
+++ b/tests/utils/test_dot_to_relation.py
@@ -0,0 +1,9 @@
+from dropdown import utils
+
+
+def test_simple():
+    assert utils.dot_to_relation('x.y') == 'x__y'
+
+
+def test_three_dots():
+    assert utils.dot_to_relation('x.y.z') == 'x__y__z'