diff --git a/pkgs/games/gnuchess/default.nix b/pkgs/games/gnuchess/default.nix
index 9b0ada3f926..c61d46e9d33 100644
--- a/pkgs/games/gnuchess/default.nix
+++ b/pkgs/games/gnuchess/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
     inherit (s) version;
     description = "GNU Chess engine";
     maintainers = [stdenv.lib.maintainers.raskin];
-    platforms = stdenv.lib.platforms.linux;
+    platforms = stdenv.lib.platforms.unix;
     license = stdenv.lib.licenses.gpl3Plus;
   };
 }
diff --git a/pkgs/games/xboard/default.nix b/pkgs/games/xboard/default.nix
index 46d3873659f..442aad46fea 100644
--- a/pkgs/games/xboard/default.nix
+++ b/pkgs/games/xboard/default.nix
@@ -28,7 +28,7 @@ stdenv.mkDerivation {
     inherit (s) version;
     description = ''GUI for chess engines'';
     maintainers = [stdenv.lib.maintainers.raskin];
-    platforms = stdenv.lib.platforms.linux;
+    platforms = stdenv.lib.platforms.unix;
     license = stdenv.lib.licenses.gpl3Plus;
   };
 }