treewide: use optionalString instead of 'then ""'

1 files changed, 1 insertions, 1 deletions

diff --git a/pkgs/build-support/kernel/make-initrd-ng.nix b/pkgs/build-support/kernel/make-initrd-ng.nix
index f3cf3d59f92b0..2418838176ef3 100644
--- a/pkgs/build-support/kernel/make-initrd-ng.nix
+++ b/pkgs/build-support/kernel/make-initrd-ng.nix
@@ -72,7 +72,7 @@ in
   ${if makeUInitrd then "uInitrdCompression" else null} = uInitrdCompression;
 
   passAsFile = ["contents"];
-  contents = lib.concatMapStringsSep "\n" ({ object, symlink, ... }: "${object}\n${if symlink == null then "" else symlink}") contents + "\n";
+  contents = lib.concatMapStringsSep "\n" ({ object, symlink, ... }: "${object}\n${lib.optionalString (symlink != null) symlink}") contents + "\n";
 
   nativeBuildInputs = [makeInitrdNGTool cpio] ++ lib.optional makeUInitrd ubootTools ++ lib.optional strip binutils;