Don't use "with licenses;" for single licences

And don't use square brackets on such lines.

1 files changed, 1 insertions, 1 deletions

diff --git a/pkgs/development/libraries/jsoncpp/default.nix b/pkgs/development/libraries/jsoncpp/default.nix
index 07563364e34..c90a2481648 100644
--- a/pkgs/development/libraries/jsoncpp/default.nix
+++ b/pkgs/development/libraries/jsoncpp/default.nix
@@ -37,7 +37,7 @@ stdenv.mkDerivation rec {
     homepage = https://github.com/open-source-parsers/jsoncpp;
     description = "A simple API to manipulate JSON data in C++";
     maintainers = with stdenv.lib.maintainers; [ ttuegel ];
-    license = with stdenv.lib.licenses; [ mit ];
+    license = stdenv.lib.licenses.mit;
     branch = "1.6";
   };
 }