diff --git a/lib/discourse_hub.rb b/lib/discourse_hub.rb
index 40aabdedda9..174ca23fb8a 100644
--- a/lib/discourse_hub.rb
+++ b/lib/discourse_hub.rb
@@ -51,8 +51,8 @@ module DiscourseHub
   def self.collection_action(action, rel_url, params={})
     JSON.parse(Excon.send(action,
       "#{hub_base_url}#{rel_url}",
-      body: URI.encode_www_form(params),
-      headers: { 'Referer' => referer, 'Accept' => accepts.join(', '), "Content-Type" => "application/x-www-form-urlencoded" },
+      body: JSON[params],
+      headers: { 'Referer' => referer, 'Accept' => accepts.join(', '), "Content-Type" => "application/json" },
       omit_default_port: true
     ).body)
   end