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Diffstat (limited to 'nixpkgs/pkgs/tools/networking/dhcpcd/default.nix')
-rw-r--r--nixpkgs/pkgs/tools/networking/dhcpcd/default.nix2
1 files changed, 1 insertions, 1 deletions
diff --git a/nixpkgs/pkgs/tools/networking/dhcpcd/default.nix b/nixpkgs/pkgs/tools/networking/dhcpcd/default.nix
index cc1bad106f75..0962335ad1a3 100644
--- a/nixpkgs/pkgs/tools/networking/dhcpcd/default.nix
+++ b/nixpkgs/pkgs/tools/networking/dhcpcd/default.nix
@@ -44,7 +44,7 @@ stdenv.mkDerivation rec {
   installFlags = [ "DBDIR=$(TMPDIR)/db" "SYSCONFDIR=${placeholder "out"}/etc" ];
 
   # Check that the udev plugin got built.
-  postInstall = lib.optional (udev != null) "[ -e ${placeholder "out"}/lib/dhcpcd/dev/udev.so ]";
+  postInstall = lib.optionalString (udev != null) "[ -e ${placeholder "out"}/lib/dhcpcd/dev/udev.so ]";
 
   meta = with lib; {
     description = "A client for the Dynamic Host Configuration Protocol (DHCP)";