From 60365f57f5fc1262341ed4dbfaa07993c261875c Mon Sep 17 00:00:00 2001
From: Pascal Wittmann <mail@pascal-wittmann.de>
Date: Sun, 22 Jul 2018 16:43:55 +0200
Subject: [PATCH] zerofree: add license

see issue #43716
---
 pkgs/tools/filesystems/zerofree/default.nix | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pkgs/tools/filesystems/zerofree/default.nix b/pkgs/tools/filesystems/zerofree/default.nix
index 916b8509b0d..c311ac1af23 100644
--- a/pkgs/tools/filesystems/zerofree/default.nix
+++ b/pkgs/tools/filesystems/zerofree/default.nix
@@ -20,6 +20,7 @@ stdenv.mkDerivation rec {
     homepage = https://frippery.org/uml/;
     description = "Zero free blocks from ext2, ext3 and ext4 file-systems";
     platforms = stdenv.lib.platforms.linux;
+    license = stdenv.lib.licenses.gpl2;
     maintainers = [ stdenv.lib.maintainers.theuni ];
   };
 }