diff --git a/pkgs/development/libraries/libnova/default.nix b/pkgs/development/libraries/libnova/default.nix
index a66a1a88c743..cb70d803ac0c 100644
--- a/pkgs/development/libraries/libnova/default.nix
+++ b/pkgs/development/libraries/libnova/default.nix
@@ -2,15 +2,16 @@
 
 stdenv.mkDerivation rec {
   name = "libnova-0.12.3";
-	
+
   src = fetchurl {
     url = "mirror://sourceforge/libnova/${name}.tar.gz";
     sha256 = "18mkx79gyhccp5zqhf6k66sbhv97s7839sg15534ijajirkhw9dc";
   };
-  
-  meta = {
+
+  meta = with stdenv.lib; {
     description = "Celestial Mechanics, Astrometry and Astrodynamics Library";
     homepage = http://libnova.sf.net;
-    platforms = stdenv.lib.platforms.unix;
+    platforms = platforms.unix;
+    license = licenses.gpl2;
   };
 }