diff --git a/rest_framework/fields.py b/rest_framework/fields.py
index 80eff66c4..1657e57f3 100644
--- a/rest_framework/fields.py
+++ b/rest_framework/fields.py
@@ -516,7 +516,7 @@ class ChoiceField(WritableField):
 
     def metadata(self):
         data = super(ChoiceField, self).metadata()
-        data['choices'] = self.choices
+        data['choices'] = [{'value': v, 'name': n} for v, n in self.choices]
         return data
 
     def validate(self, value):