diff --git a/pkgs/tools/cd-dvd/bchunk/default.nix b/pkgs/tools/cd-dvd/bchunk/default.nix
index 6828ef7d61d..aa47edcb96c 100644
--- a/pkgs/tools/cd-dvd/bchunk/default.nix
+++ b/pkgs/tools/cd-dvd/bchunk/default.nix
@@ -20,5 +20,6 @@ stdenv.mkDerivation rec {
     homepage = http://he.fi/bchunk/;
     description = "A program that converts CD images in BIN/CUE format into a set of ISO and CDR tracks";
     platforms = platforms.unix;
+    license = licenses.gpl2;
   };
 }