diff --git a/pkgs/applications/misc/kiwix/default.nix b/pkgs/applications/misc/kiwix/default.nix
index 3961138658f..b0590fdc38f 100644
--- a/pkgs/applications/misc/kiwix/default.nix
+++ b/pkgs/applications/misc/kiwix/default.nix
@@ -104,6 +104,7 @@ stdenv.mkDerivation rec {
     description = "An offline reader for Web content";
     homepage = http://kiwix.org;
     license = licenses.gpl3;
+    platforms = platforms.linux;
     maintainers = with maintainers; [ robbinch ];
   };
 }
diff --git a/pkgs/tools/misc/idutils/default.nix b/pkgs/tools/misc/idutils/default.nix
index 503beefa15a..99f19889201 100644
--- a/pkgs/tools/misc/idutils/default.nix
+++ b/pkgs/tools/misc/idutils/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
 
   buildInputs = stdenv.lib.optional stdenv.isLinux emacs;
 
-  doCheck = true;
+  doCheck = !stdenv.isDarwin;
 
   patches = [ ./nix-mapping.patch ];