Use `chttpd:qs*` instead of `couch_httpd:qs*`
diff --git a/src/global_changes_httpd.erl b/src/global_changes_httpd.erl
index dc7c08a..1ab36a2 100644
--- a/src/global_changes_httpd.erl
+++ b/src/global_changes_httpd.erl
@@ -29,7 +29,7 @@
 
 handle_global_changes_req(#httpd{method='GET'}=Req) ->
     Db = global_changes_util:get_dbname(),
-    Feed = couch_httpd:qs_value(Req, "feed", "normal"),
+    Feed = chttpd:qs_value(Req, "feed", "normal"),
     Options = parse_global_changes_query(Req),
     Heartbeat = case lists:keyfind(heartbeat, 1, Options) of
         {heartbeat, true} -> 60000;
@@ -225,7 +225,7 @@
         _Else -> % unknown key value pair, ignore.
             Args
         end
-    end, [], couch_httpd:qs(Req)).
+    end, [], chttpd:qs(Req)).
 
 
 to_non_neg_int(Value) ->