diff --git a/config/config.exs b/config/config.exs
index 5206fe375..0e91df886 100644
--- a/config/config.exs
+++ b/config/config.exs
@@ -373,6 +373,8 @@ config :pleroma, :chat, enabled: true
 
 config :phoenix, :format_encoders, json: Jason
 
+config :phoenix, :json_library, Jason
+
 config :pleroma, :gopher,
   enabled: false,
   ip: {0, 0, 0, 0},
diff --git a/lib/healthcheck.ex b/lib/pleroma/healthcheck.ex
similarity index 98%
rename from lib/healthcheck.ex
rename to lib/pleroma/healthcheck.ex
index f97d14432..977b78c26 100644
--- a/lib/healthcheck.ex
+++ b/lib/pleroma/healthcheck.ex
@@ -9,6 +9,7 @@ defmodule Pleroma.Healthcheck do
   alias Pleroma.Healthcheck
   alias Pleroma.Repo
 
+  @derive Jason.Encoder
   defstruct pool_size: 0,
             active: 0,
             idle: 0,