diff --git a/pkgs/data/misc/dns-root-data/default.nix b/pkgs/data/misc/dns-root-data/default.nix
index e09ff07a9e84..abf945e9df55 100644
--- a/pkgs/data/misc/dns-root-data/default.nix
+++ b/pkgs/data/misc/dns-root-data/default.nix
@@ -32,5 +32,6 @@ stdenv.mkDerivation {
   meta = with lib; {
     description = "DNS root data including root zone and DNSSEC key";
     maintainers = with maintainers; [ fpletz vcunat ];
+    license = licenses.gpl3Plus;
   };
 }