diff --git a/awx/api/metadata.py b/awx/api/metadata.py
index fb5c4d6493..8a3e75bdfb 100644
--- a/awx/api/metadata.py
+++ b/awx/api/metadata.py
@@ -13,7 +13,7 @@ from django.utils.translation import ugettext_lazy as _
 from rest_framework import exceptions
 from rest_framework import metadata
 from rest_framework import serializers
-from rest_framework.relations import RelatedField
+from rest_framework.relations import RelatedField, ManyRelatedField
 from rest_framework.request import clone_request
 
 # Ansible Tower
@@ -75,7 +75,7 @@ class Metadata(metadata.SimpleMetadata):
         elif getattr(field, 'fields', None):
             field_info['children'] = self.get_serializer_info(field)
 
-        if hasattr(field, 'choices') and not isinstance(field, RelatedField):
+        if not isinstance(field, (RelatedField, ManyRelatedField)) and hasattr(field, 'choices'):
             field_info['choices'] = [(choice_value, choice_name) for choice_value, choice_name in field.choices.items()]
 
         # Indicate if a field is write-only.