diff --git a/.formatter.exs b/.formatter.exs
index 60ec4ffb..52ccd598 100644
--- a/.formatter.exs
+++ b/.formatter.exs
@@ -4,6 +4,6 @@
   plugins: [Phoenix.LiveView.HTMLFormatter, Quokka],
   inputs: ["*.{heex,ex,exs}", "{config,lib,test}/**/*.{heex,ex,exs}", "priv/*/seeds.exs"],
   quokka: [
-    only: [:module_directives]
+    only: [:module_directives, :pipes]
   ]
 ]
diff --git a/lib/last_fm/session.ex b/lib/last_fm/session.ex
index 359b548f..4edcc3b4 100644
--- a/lib/last_fm/session.ex
+++ b/lib/last_fm/session.ex
@@ -66,7 +66,7 @@ defmodule LastFm.Session do
     doc
   end
 
-  defp first(node, path), do: node |> xpath(path) |> take_one
+  defp first(node, path), do: node |> xpath(path) |> take_one()
 
   defp take_one([head | _]), do: head
   defp take_one(_), do: nil
@@ -77,7 +77,7 @@ defmodule LastFm.Session do
     :xmerl_xpath.string(to_charlist(path), node)
   end
 
-  def text(node), do: node |> xpath(~c"./text()") |> extract_text
+  def text(node), do: node |> xpath(~c"./text()") |> extract_text()
 
   defp extract_text([xmlText(value: value)]), do: List.to_string(value)
   defp extract_text(_x), do: nil
diff --git a/lib/music_library_web/telemetry/storage.ex b/lib/music_library_web/telemetry/storage.ex
index 48f50256..1d91aa06 100644
--- a/lib/music_library_web/telemetry/storage.ex
+++ b/lib/music_library_web/telemetry/storage.ex
@@ -17,11 +17,10 @@ defmodule MusicLibraryWeb.Telemetry.Storage do
 
     metric_histories_map =
       metrics
-      |> Enum.map(fn metric ->
+      |> Map.new(fn metric ->
         attach_handler(metric)
         {metric, CircularBuffer.new(@history_buffer_size)}
       end)
-      |> Map.new()
 
     {:ok, metric_histories_map}
   end