diff --git a/deps/rabbitmq_management/src/rabbit_mgmt_util.erl b/deps/rabbitmq_management/src/rabbit_mgmt_util.erl
index 7e4cf33224..6b31a121ab 100644
--- a/deps/rabbitmq_management/src/rabbit_mgmt_util.erl
+++ b/deps/rabbitmq_management/src/rabbit_mgmt_util.erl
@@ -99,12 +99,12 @@ reply(Facts, ReqData, Context) ->
     try
         {mochijson2:encode(Facts), ReqData1, Context}
     catch
-        exit:{json_encode, Error} ->
-            halt_response(
-              500,
-              iolist_to_binary(io_lib:format("JSON encode error: ~p", [Error])),
-              iolist_to_binary(io_lib:format("While encoding:~n~p", [Facts])),
-              ReqData1, Context)
+        exit:{json_encode, E} ->
+            Error = iolist_to_binary(
+                      io_lib:format("JSON encode error: ~p", [E])),
+            Reason = iolist_to_binary(
+                       io_lib:format("While encoding:~n~p", [Facts])),
+            internal_server_error(Error, Reason, ReqData1, Context)
     end.
 
 reply_list(Facts, ReqData, Context) ->
@@ -163,6 +163,10 @@ not_authorised(Reason, ReqData, Context) ->
 not_found(Reason, ReqData, Context) ->
     halt_response(404, not_found, Reason, ReqData, Context).
 
+internal_server_error(Error, Reason, ReqData, Context) ->
+    rabbit_log:error("~s~n~s~n", [Error, Reason]),
+    halt_response(500, Error, Reason, ReqData, Context).
+
 halt_response(Code, Type, Reason, ReqData, Context) ->
     Json = {struct, [{error, Type},
                      {reason, rabbit_mgmt_format:tuple(Reason)}]},