diff --git a/rest_framework/metadata.py b/rest_framework/metadata.py
index 410acd0e2..8309732d2 100644
--- a/rest_framework/metadata.py
+++ b/rest_framework/metadata.py
@@ -36,6 +36,7 @@ class SimpleMetadata(BaseMetadata):
     for us to base this on.
     """
     label_lookup = ClassLookupDict({
+        serializers.BaseSerializer: 'serializer',
         serializers.Field: 'field',
         serializers.BooleanField: 'boolean',
         serializers.NullBooleanField: 'boolean',
@@ -148,4 +149,7 @@ class SimpleMetadata(BaseMetadata):
                 for choice_value, choice_name in field.choices.items()
             ]
 
+        if isinstance(field, serializers.BaseSerializer):
+            field_info['fields'] = self.get_serializer_info(field)
+
         return field_info