diff --git a/rest_framework/status.py b/rest_framework/status.py
index c6ca4e00c..8ed4f74db 100644
--- a/rest_framework/status.py
+++ b/rest_framework/status.py
@@ -80,6 +80,7 @@ HTTP_502_BAD_GATEWAY = 502
 HTTP_503_SERVICE_UNAVAILABLE = 503
 HTTP_504_GATEWAY_TIMEOUT = 504
 HTTP_505_HTTP_VERSION_NOT_SUPPORTED = 505
+HTTP_506_VARIANT_ALSO_NEGOTIATES = 506
 HTTP_507_INSUFFICIENT_STORAGE = 507
 HTTP_508_LOOP_DETECTED = 508
 HTTP_511_NETWORK_AUTHENTICATION_REQUIRED = 511