diff --git a/rest_framework/renderers.py b/rest_framework/renderers.py
index 6275e20f9..11e9fb960 100644
--- a/rest_framework/renderers.py
+++ b/rest_framework/renderers.py
@@ -646,7 +646,7 @@ class BrowsableAPIRenderer(BaseRenderer):
             paginator = None
 
         csrf_cookie_name = settings.CSRF_COOKIE_NAME
-        csrf_header_name = getattr(settings, 'CSRF_HEADER_NAME', 'X-CSRFToken')  # Fallback for Django 1.8
+        csrf_header_name = getattr(settings, 'CSRF_HEADER_NAME', 'HTTP_X_CSRFToken')  # Fallback for Django 1.8
         if csrf_header_name.startswith('HTTP_'):
             csrf_header_name = csrf_header_name[5:]
         csrf_header_name = csrf_header_name.replace('_', '-')