diff --git a/pkgs/by-name/ma/maturin/package.nix b/pkgs/by-name/ma/maturin/package.nix
index ae91734bdeb9..8869cee2050f 100644
--- a/pkgs/by-name/ma/maturin/package.nix
+++ b/pkgs/by-name/ma/maturin/package.nix
@@ -1,10 +1,11 @@
-{ callPackage
-, lib
-, stdenv
-, fetchFromGitHub
-, rustPlatform
-, darwin
-, libiconv
+{
+  callPackage,
+  lib,
+  stdenv,
+  fetchFromGitHub,
+  rustPlatform,
+  darwin,
+  libiconv,
 }:
 
 rustPlatform.buildRustPackage rec {
@@ -20,12 +21,15 @@ rustPlatform.buildRustPackage rec {
 
   cargoHash = "sha256-EuMPcJAGz564cC9UWrlihBxRUJCtqw4jvP/SQgx2L/0=";
 
-  buildInputs = lib.optionals stdenv.isDarwin [ darwin.apple_sdk.frameworks.Security libiconv ];
+  buildInputs = lib.optionals stdenv.isDarwin [
+    darwin.apple_sdk.frameworks.Security
+    libiconv
+  ];
 
   # Requires network access, fails in sandbox.
   doCheck = false;
 
-  passthru.tests.pyo3 = callPackage ./pyo3-test {};
+  passthru.tests.pyo3 = callPackage ./pyo3-test { };
 
   meta = with lib; {
     description = "Build and publish Rust crates Python packages";
@@ -40,7 +44,10 @@ rustPlatform.buildRustPackage rec {
     '';
     homepage = "https://github.com/PyO3/maturin";
     changelog = "https://github.com/PyO3/maturin/blob/v${version}/Changelog.md";
-    license = with licenses; [ asl20 /* or */ mit ];
+    license = with licenses; [
+      asl20 # or
+      mit
+    ];
     maintainers = [ ];
   };
 }
diff --git a/pkgs/by-name/ma/maturin/pyo3-test/default.nix b/pkgs/by-name/ma/maturin/pyo3-test/default.nix
index 7f79c8565d23..140d7154c6b6 100644
--- a/pkgs/by-name/ma/maturin/pyo3-test/default.nix
+++ b/pkgs/by-name/ma/maturin/pyo3-test/default.nix
@@ -1,6 +1,4 @@
-{ python3
-, rustPlatform
-}:
+{ python3, rustPlatform }:
 
 python3.pkgs.callPackage ./generic.nix {
   buildAndTestSubdir = "examples/word-count";
diff --git a/pkgs/by-name/ma/maturin/pyo3-test/generic.nix b/pkgs/by-name/ma/maturin/pyo3-test/generic.nix
index 7bc7e8d43bcb..f32d616e361e 100644
--- a/pkgs/by-name/ma/maturin/pyo3-test/generic.nix
+++ b/pkgs/by-name/ma/maturin/pyo3-test/generic.nix
@@ -1,16 +1,17 @@
 # Derivation prototype, used by maturin and setuptools-rust
 # passthrough tests.
 
-{ lib
-, fetchFromGitHub
-, python
-, rustPlatform
+{
+  lib,
+  fetchFromGitHub,
+  python,
+  rustPlatform,
 
-, nativeBuildInputs
+  nativeBuildInputs,
 
-, buildAndTestSubdir ? null
-, format ? "pyproject"
-, preConfigure ? ""
+  buildAndTestSubdir ? null,
+  format ? "pyproject",
+  preConfigure ? "",
 }:
 
 python.pkgs.buildPythonPackage rec {
@@ -24,15 +25,18 @@ python.pkgs.buildPythonPackage rec {
     hash = "sha256-NOMrrfo8WjlPhtGxWUOPJS/UDDdbLQRCXR++Zd6JmIA=";
   };
 
-  cargoDeps = rustPlatform.importCargoLock {
-    lockFile = ./Cargo.lock;
-  };
+  cargoDeps = rustPlatform.importCargoLock { lockFile = ./Cargo.lock; };
 
   postPatch = ''
     ln -s ${./Cargo.lock} Cargo.lock
   '';
 
-  inherit buildAndTestSubdir format nativeBuildInputs preConfigure;
+  inherit
+    buildAndTestSubdir
+    format
+    nativeBuildInputs
+    preConfigure
+    ;
 
   pythonImportsCheck = [ "word_count" ];