diff --git a/rest_framework/negotiation.py b/rest_framework/negotiation.py
index 02e4940e8..2ef44e1b2 100644
--- a/rest_framework/negotiation.py
+++ b/rest_framework/negotiation.py
@@ -100,5 +100,4 @@ class DefaultContentNegotiation(BaseContentNegotiation):
             else:
                 header = '*/*'
 
-        header = request.query_params.get(self.settings.URL_ACCEPT_OVERRIDE, header)
         return [token.strip() for token in header.split(',')]