diff --git a/lib/membrane_caps_audio_flac/metadata.ex b/lib/membrane_caps_audio_flac/frame_metadata.ex
similarity index 82%
rename from lib/membrane_caps_audio_flac/metadata.ex
rename to lib/membrane_caps_audio_flac/frame_metadata.ex
index 86d4767..e54a47a 100644
--- a/lib/membrane_caps_audio_flac/metadata.ex
+++ b/lib/membrane_caps_audio_flac/frame_metadata.ex
@@ -1,6 +1,6 @@
-defmodule Membrane.Caps.Audio.FLAC.Metadata do
+defmodule Membrane.Caps.Audio.FLAC.FrameMetadata do
   @moduledoc """
-  Module defining metadata struct for FLAC buffers.
+  Module defining metadata struct for FLAC buffers with audio frames.
 
   Based on contents of [frame header](https://xiph.org/flac/format.html#frame_header)
   """
diff --git a/mix.exs b/mix.exs
index feaa537..9073ed2 100644
--- a/mix.exs
+++ b/mix.exs
@@ -22,7 +22,8 @@ defmodule Membrane.Caps.Audio.FLAC.Mixfile do
     [
       main: "readme",
       extras: ["README.md"],
-      source_ref: "v#{@version}"
+      source_ref: "v#{@version}",
+      nest_modules_by_prefix: [Membrane.Caps.Audio.FLAC]
     ]
   end