1 files changed, 1 insertions, 2 deletions
diff --git a/pkgs/applications/science/math/singular/default.nix b/pkgs/applications/science/math/singular/default.nix
index 5c5dfae8200f..f4b3447e3b61 100644
--- a/pkgs/applications/science/math/singular/default.nix
+++ b/pkgs/applications/science/math/singular/default.nix
@@ -49,7 +49,7 @@ rec {
     ];
     platforms = with a.lib.platforms;
       linux;
-    license = "GPLv3"; # Or GPLv2 at your option - but not GPLv4
+    license = stdenv.lib.licenses.gpl3; # Or GPLv2 at your option - but not GPLv4
     homepage = "http://www.singular.uni-kl.de/index.php";
   };
   passthru = {
@@ -58,4 +58,3 @@ rec {
     };
   };
 }) x
-