diff --git a/pkgs/applications/graphics/sane/backends-git.nix b/pkgs/applications/graphics/sane/backends-git.nix
index 0892933566d..7ba6e1756ba 100644
--- a/pkgs/applications/graphics/sane/backends-git.nix
+++ b/pkgs/applications/graphics/sane/backends-git.nix
@@ -1,4 +1,6 @@
-{ stdenv, fetchurl, fetchgit, hotplugSupport ? true, libusb ? null, gt68xxFirmware ? null, snapscanFirmware ? null }:
+{ stdenv, fetchurl, fetchgit, hotplugSupport ? true, libusb ? null
+, gt68xxFirmware ? null, snapscanFirmware ? null
+}:
 let
   firmware = gt68xxFirmware { inherit fetchurl; };
 in
diff --git a/pkgs/applications/graphics/sane/backends.nix b/pkgs/applications/graphics/sane/backends.nix
index acb4ab12d4d..eaf1c3b725f 100644
--- a/pkgs/applications/graphics/sane/backends.nix
+++ b/pkgs/applications/graphics/sane/backends.nix
@@ -1,4 +1,6 @@
-{ stdenv, fetchurl, hotplugSupport ? true, libusb ? null, libv4l ? null, pkgconfig ? null , gt68xxFirmware ? null , snapscanFirmware ? null }:
+{ stdenv, fetchurl, hotplugSupport ? true, libusb ? null, libv4l ? null
+, pkgconfig ? null, gt68xxFirmware ? null, snapscanFirmware ? null
+}:
 
 assert hotplugSupport -> (stdenv.system == "i686-linux" || stdenv.system == "x86_64-linux");