diff --git a/pkgs/tools/networking/network-manager/fortisslvpn.nix b/pkgs/tools/networking/network-manager/fortisslvpn.nix
index ab49514d720..efdd6120005 100644
--- a/pkgs/tools/networking/network-manager/fortisslvpn.nix
+++ b/pkgs/tools/networking/network-manager/fortisslvpn.nix
@@ -38,6 +38,7 @@ in stdenv.mkDerivation rec {
   meta = {
     description = "NetworkManager's FortiSSL plugin";
     inherit (networkmanager.meta) maintainers platforms;
+    license = stdenv.lib.licenses.gpl2Plus;
   };
 }