diff --git a/.gitignore b/.gitignore
index 25f233df..8e5891af 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,7 +1,6 @@
 _build/
 _opam/
 result
-
 *.install
 *.spellok
 *.catala*.errors
diff --git a/.nix/bindlib.nix b/.nix/bindlib.nix
index 45b56f3d..1a3fc7d4 100644
--- a/.nix/bindlib.nix
+++ b/.nix/bindlib.nix
@@ -1,7 +1,4 @@
-{ lib
-, fetchFromGitHub
-, buildDunePackage
-}:
+{ lib, fetchFromGitHub, buildDunePackage }:
 
 # We need the very last version "bleeding edge" since previous versions don't use dune.
 
@@ -23,7 +20,8 @@ buildDunePackage rec {
 
   meta = with lib; {
     homepage = "https://rlepigre.github.io/ocaml-bindlib/";
-    description = "Bindlib is a library allowing the manipulation of data structures with bound variables";
+    description =
+      "Bindlib is a library allowing the manipulation of data structures with bound variables";
     license = licenses.lgpl3;
     maintainers = [ ];
   };
diff --git a/.nix/unionfind.nix b/.nix/unionfind.nix
index 937743fb..3f7e5d59 100644
--- a/.nix/unionfind.nix
+++ b/.nix/unionfind.nix
@@ -1,7 +1,4 @@
-{ lib
-, fetchurl
-, buildDunePackage
-}:
+{ lib, fetchurl, buildDunePackage }:
 
 buildDunePackage rec {
   pname = "unionFind";
@@ -12,7 +9,8 @@ buildDunePackage rec {
   useDune2 = true;
 
   src = fetchurl {
-    url = "https://gitlab.inria.fr/fpottier/unionFind/-/archive/20200320/archive.tar.gz";
+    url =
+      "https://gitlab.inria.fr/fpottier/unionFind/-/archive/20200320/archive.tar.gz";
     hash = "sha256-szIwK9QyAw6fIIWDOiiyfyrEFZaaErGPRLkGhIK9STI=";
   };
 
diff --git a/default.nix b/default.nix
index 8fed6d45..2531e987 100644
--- a/default.nix
+++ b/default.nix
@@ -1,24 +1,6 @@
-{ lib
-, fetchFromGitHub
-, buildDunePackage
-, ansiterminal
-, sedlex_2
-, menhir
-, unionfind
-, bindlib
-, cmdliner
-, re
-, zarith
-, zarith_stubs_js
-, ocamlgraph
-, calendar
-, visitors
-, benchmark
-, js_of_ocaml
-, js_of_ocaml-ppx
-, camomile
-, cppo
-}:
+{ lib, fetchFromGitHub, buildDunePackage, ansiterminal, sedlex_2, menhir
+, unionfind, bindlib, cmdliner, re, zarith, zarith_stubs_js, ocamlgraph
+, calendar, visitors, benchmark, js_of_ocaml, js_of_ocaml-ppx, camomile, cppo }:
 
 buildDunePackage rec {
   pname = "catala";
@@ -54,11 +36,11 @@ buildDunePackage rec {
 
   patches = [ ./.nix/no-web.patch ];
 
-
   meta = with lib; {
     homepage = "https://catala-lang.org";
-    description = "Catala is a domain-specific programming language designed for deriving correct-by-construction implementations from legislative texts.";
+    description =
+      "Catala is a domain-specific programming language designed for deriving correct-by-construction implementations from legislative texts.";
     license = licenses.asl20;
     maintainers = with maintainers; [ ];
   };
-}
\ No newline at end of file
+}
diff --git a/release.nix b/release.nix
index 732ec746..f1859d38 100644
--- a/release.nix
+++ b/release.nix
@@ -2,6 +2,6 @@
 
 with pkgs;
 ocamlPackages.callPackage ./. {
-    bindlib = ocamlPackages.callPackage ./.nix/bindlib.nix {};
-    unionfind = ocamlPackages.callPackage ./.nix/unionfind.nix {};
-}
\ No newline at end of file
+  bindlib = ocamlPackages.callPackage ./.nix/bindlib.nix { };
+  unionfind = ocamlPackages.callPackage ./.nix/unionfind.nix { };
+}
diff --git a/shell.nix b/shell.nix
index 9e86b66b..9470086e 100644
--- a/shell.nix
+++ b/shell.nix
@@ -1,10 +1,11 @@
-{ pkgs? import <nixpkgs> { } }:
+{ pkgs ? import <nixpkgs> { } }:
 
 with pkgs;
-let pkg = ocamlPackages.callPackage ./. {
-    bindlib = ocamlPackages.callPackage ./.nix/bindlib.nix {};
-    unionfind = ocamlPackages.callPackage ./.nix/unionfind.nix {};
-};
+let
+  pkg = ocamlPackages.callPackage ./. {
+    bindlib = ocamlPackages.callPackage ./.nix/bindlib.nix { };
+    unionfind = ocamlPackages.callPackage ./.nix/unionfind.nix { };
+  };
 in mkShell {
   inputsFrom = [ pkg ];
   buildInputs = pkg.propagatedBuildInputs ++ [
@@ -15,4 +16,4 @@ in mkShell {
     ocamlPackages.utop
     ocamlPackages.ocaml-lsp
   ];
-}
\ No newline at end of file
+}