From ab7541da1c1aee3e4b1e62e49ab1e00b02718841 Mon Sep 17 00:00:00 2001
From: Simon MacMullen <simon@rabbitmq.com>
Date: Thu, 31 Oct 2013 11:48:53 +0000
Subject: Better error message.

---
 src/rabbit_channel.erl | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl
index c837f5e8..6aa88898 100644
--- a/src/rabbit_channel.erl
+++ b/src/rabbit_channel.erl
@@ -550,10 +550,11 @@ check_not_default_exchange(#resource{kind = exchange, name = <<"">>}) ->
 check_not_default_exchange(_) ->
     ok.
 
-check_exchange_deletion(#resource{kind = exchange,
-                                  name = <<"amq.rabbitmq.", _/binary>>}) ->
+check_exchange_deletion(XName = #resource{name = <<"amq.rabbitmq.", _/binary>>,
+                                          kind = exchange}) ->
     rabbit_misc:protocol_error(
-      access_refused, "deletion of system exchanges not allowed", []);
+      access_refused, "deletion of system ~s not allowed",
+      [rabbit_misc:rs(XName)]);
 check_exchange_deletion(_) ->
     ok.
 
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