diff --git a/djangojsonschema/jsonschema.py b/djangojsonschema/jsonschema.py
index eef1ded..b80df9b 100644
--- a/djangojsonschema/jsonschema.py
+++ b/djangojsonschema/jsonschema.py
@@ -30,7 +30,7 @@ def convert_formfield(self, name, field, json_schema):
         #TODO detect bound field
         widget = field.widget
         target_def = {
-            'title': field.label or pretty_name(name),
+            'title': unicode(field.label or pretty_name(name)),
             'description': field.help_text,
         }
         if field.required: