diff --git a/bootstrapform/config.py b/bootstrapform/config.py
index dec5116..b1b8ecb 100644
--- a/bootstrapform/config.py
+++ b/bootstrapform/config.py
@@ -1,3 +1,4 @@
 from django.conf import settings
 
+
 BOOTSTRAP_COLUMN_COUNT = getattr(settings, 'BOOTSTRAP_COLUMN_COUNT', 12)
diff --git a/bootstrapform/templatetags/bootstrap.py b/bootstrapform/templatetags/bootstrap.py
index 8c36c18..7a9ea6c 100644
--- a/bootstrapform/templatetags/bootstrap.py
+++ b/bootstrapform/templatetags/bootstrap.py
@@ -51,8 +51,8 @@ def bootstrap_horizontal(element, label_cols={}):
 
 
 def add_input_classes(field):
-    if not is_checkbox(field) and not is_multiple_checkbox(field) and not is_radio(field) \
-        and not is_file(field):
+    if not is_checkbox(field) and not is_multiple_checkbox(field) \
+       and not is_radio(field) and not is_file(field):
         field_classes = field.field.widget.attrs.get('class', '')
         field_classes += ' form-control'
         field.field.widget.attrs['class'] = field_classes