diff --git a/pkgs/tools/networking/axel/default.nix b/pkgs/tools/networking/axel/default.nix
index 2155d3c1b3d8..8a0efbb1943d 100644
--- a/pkgs/tools/networking/axel/default.nix
+++ b/pkgs/tools/networking/axel/default.nix
@@ -20,5 +20,6 @@ stdenv.mkDerivation rec {
     homepage = http://axel.alioth.debian.org/;
     maintainers = with maintainers; [ pSub ];
     platforms = with platforms; linux;
+    license = licenses.gpl2;
   };
 }