diff --git a/tailbone/forms/renderers/core.py b/tailbone/forms/renderers/core.py
index 0f3c925c..ac80404a 100644
--- a/tailbone/forms/renderers/core.py
+++ b/tailbone/forms/renderers/core.py
@@ -43,6 +43,7 @@ class CustomFieldRenderer(fa.FieldRenderer):
     def __init__(self, *args, **kwargs):
         if len(args) == 1 and isinstance(args[0], AbstractField):
             super(CustomFieldRenderer, self).__init__(args[0])
+            self.init(**kwargs)
         else:
             assert len(args) == 0
             self.init(**kwargs)