diff --git a/rustler_mix/lib/rustler/compiler.ex b/rustler_mix/lib/rustler/compiler.ex
index 6440085b..435deb95 100644
--- a/rustler_mix/lib/rustler/compiler.ex
+++ b/rustler_mix/lib/rustler/compiler.ex
@@ -13,12 +13,12 @@ defmodule Rustler.Compiler do
 
     artifacts = Server.build()
 
-    is_release = Mix.env in [:prod, :bench]
+    is_release = Mix.env() in [:prod, :bench]
 
     entry =
       artifacts
-      |> Map.values
-      |> Enum.find(&crate == &1[:name])
+      |> Map.values()
+      |> Enum.find(&(crate == &1[:name]))
 
     [filename] = entry[:filenames]
     out_path = Path.join(priv_dir(entry, is_release), Path.basename(filename))