diff --git a/pkgs/misc/emulators/openmsx/default.nix b/pkgs/misc/emulators/openmsx/default.nix
index 68b464f4d358..f0ab48aa6258 100644
--- a/pkgs/misc/emulators/openmsx/default.nix
+++ b/pkgs/misc/emulators/openmsx/default.nix
@@ -45,5 +45,6 @@ stdenv.mkDerivation rec {
     homepage = "https://openmsx.org";
     maintainers = with maintainers; [ AndersonTorres ];
     platforms = platforms.unix;
+    license = with licenses; [ bsd2 boost gpl2 ];
   };
 }