diff --git a/pkgs/development/libraries/libtsm/default.nix b/pkgs/development/libraries/libtsm/default.nix
index d959306c9718..9c8e418fba4f 100644
--- a/pkgs/development/libraries/libtsm/default.nix
+++ b/pkgs/development/libraries/libtsm/default.nix
@@ -20,6 +20,6 @@ stdenv.mkDerivation rec {
     homepage = "http://www.freedesktop.org/wiki/Software/kmscon/libtsm/";
     license = licenses.mit;
     maintainers = with maintainers; [ cstrahan ];
-    platforms = with platforms; unix;
+    platforms = platforms.linux;
   };
 }