diff --git a/pkgs/applications/science/astronomy/gpredict/default.nix b/pkgs/applications/science/astronomy/gpredict/default.nix
index 4cda15e516d..3f82ff7b52a 100644
--- a/pkgs/applications/science/astronomy/gpredict/default.nix
+++ b/pkgs/applications/science/astronomy/gpredict/default.nix
@@ -26,7 +26,7 @@ in stdenv.mkDerivation {
       well. Gpredict uses the SGP4/SDP4 algorithms, which are compatible with the
       NORAD Keplerian elements.
     '';
-    license = licenses.gpl2;
+    license = licenses.gpl2Only;
     platforms = platforms.linux;
     homepage = "http://gpredict.oz9aec.net/";
     maintainers = [ maintainers.markuskowa maintainers.cmcdragonkai ];