diff --git a/rest_framework/renderers.py b/rest_framework/renderers.py
index 1ec33deb7..511f5d474 100644
--- a/rest_framework/renderers.py
+++ b/rest_framework/renderers.py
@@ -22,7 +22,7 @@ from django.utils import six
 
 from rest_framework import VERSION, exceptions, serializers, status
 from rest_framework.compat import (
-    coreapi, INDENT_SEPARATORS, LONG_SEPARATORS, SHORT_SEPARATORS,
+    INDENT_SEPARATORS, LONG_SEPARATORS, SHORT_SEPARATORS, coreapi,
     template_render
 )
 from rest_framework.exceptions import ParseError
@@ -795,4 +795,4 @@ class CoreJSONRenderer(BaseRenderer):
     def render(self, data, media_type=None, renderer_context=None):
         indent = bool(renderer_context.get('indent', 0))
         codec = coreapi.codecs.CoreJSONCodec()
-        return codec.dump(data, indent=True)
+        return codec.dump(data, indent=indent)
diff --git a/rest_framework/routers.py b/rest_framework/routers.py
index 17ea5bacc..789f0217f 100644
--- a/rest_framework/routers.py
+++ b/rest_framework/routers.py
@@ -236,7 +236,6 @@ class SimpleRouter(BaseRouter):
         """
         Use the registered viewsets to generate a list of URL patterns.
         """
-        self.get_links()
         ret = []
 
         for prefix, viewset, basename in self.registry:
@@ -264,7 +263,6 @@ class SimpleRouter(BaseRouter):
         return ret
 
     def get_links(self):
-        ret = []
         content = {}
 
         for prefix, viewset, basename in self.registry: