diff --git a/pkgs/applications/version-management/cvs/default.nix b/pkgs/applications/version-management/cvs/default.nix
index 71fb7612b339..2063149dd784 100644
--- a/pkgs/applications/version-management/cvs/default.nix
+++ b/pkgs/applications/version-management/cvs/default.nix
@@ -32,9 +32,10 @@ stdenv.mkDerivation {
 
   doCheck = false; # fails 1 of 1 tests
 
-  meta = {
+  meta = with stdenv.lib; {
     homepage = http://cvs.nongnu.org;
     description = "Concurrent Versions System - a source control system";
-    platforms = stdenv.lib.platforms.all;
+    license = licenses.gpl2; # library is GPLv2, main is GPLv1
+    platforms = platforms.all;
   };
 }