diff --git a/pkgs/misc/cups/default.nix b/pkgs/misc/cups/default.nix
index d5d2da102c3..34367f0e011 100644
--- a/pkgs/misc/cups/default.nix
+++ b/pkgs/misc/cups/default.nix
@@ -19,8 +19,8 @@ stdenv.mkDerivation {
   # non-Linux platforms. This should be cleaned once the expression is
   # stable.
   buildInputs = [ pkgconfig zlib libjpeg libpng libtiff ]
-    ++ stdenv.lib.optionals stdenv.isLinux [ pam ]
-    ++ [ dbus libusb ]
+    ++ stdenv.lib.optionals stdenv.isLinux [ pam dbus ]
+    ++ [ libusb ]
     ++ stdenv.lib.optionals stdenv.isLinux [ acl ] ;
 
   propagatedBuildInputs = [ openssl ];