diff --git a/pkgs/development/libraries/codec2/default.nix b/pkgs/development/libraries/codec2/default.nix
index 09ec21cc63e..88b35f16c30 100644
--- a/pkgs/development/libraries/codec2/default.nix
+++ b/pkgs/development/libraries/codec2/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
   meta = with lib; {
     description = "Speech codec designed for communications quality speech at low data rates";
     homepage = "http://www.rowetel.com/blog/?page_id=452";
-    license = licenses.lgpl21;
+    license = licenses.lgpl21Only;
     platforms = platforms.unix;
     maintainers = with maintainers; [ markuskowa ];
   };