diff --git a/pkgs/applications/science/math/maxima/default.nix b/pkgs/applications/science/math/maxima/default.nix
index e945cda17678..0e0f78498a0c 100644
--- a/pkgs/applications/science/math/maxima/default.nix
+++ b/pkgs/applications/science/math/maxima/default.nix
@@ -17,6 +17,7 @@ stdenv.mkDerivation {
   meta = {
     description = "Maxima computer algebra system";
     homepage = "http://maxima.sourceforge.net";
+    license = "GPL2";
 
     longDescription = ''
       Maxima is a fairly complete computer algebra system written in