diff --git a/pkgs/tools/misc/parted/default.nix b/pkgs/tools/misc/parted/default.nix
index 9a4c81ce8633..f66e44b3a314 100644
--- a/pkgs/tools/misc/parted/default.nix
+++ b/pkgs/tools/misc/parted/default.nix
@@ -8,8 +8,7 @@ stdenv.mkDerivation rec {
     sha256 = "02amqpzl8lgk247cjsbaz1nsiz9i1pbj0adx0z109h94p90i48sk";
   };
 
-  buildInputs = [ libuuid gettext readline ] ++
-    stdenv.lib.optional stdenv.isLinux devicemapper;
+  buildInputs = [ libuuid gettext readline libuuid devicemapper ];
 
   # XXX: For some reason our libreadline.so doesn't have libncurses as
   # NEEDED and `configure' links with `-Wl,--as-needed' so when
@@ -44,5 +43,8 @@ stdenv.mkDerivation rec {
       # Add your name here!
       stdenv.lib.maintainers.ludo
     ];
+
+    # GNU Parted requires libuuid, which is part of e2fsprogs.
+    platforms = stdenv.lib.platforms.linux;
   };
 }
diff --git a/pkgs/tools/system/fdisk/default.nix b/pkgs/tools/system/fdisk/default.nix
index ed8cb8044cdb..1b9e62f5d036 100644
--- a/pkgs/tools/system/fdisk/default.nix
+++ b/pkgs/tools/system/fdisk/default.nix
@@ -25,5 +25,6 @@ stdenv.mkDerivation rec {
     homepage = http://www.gnu.org/software/fdisk/;
 
     maintainers = [ stdenv.lib.maintainers.ludo ];
+    platforms = stdenv.lib.platforms.linux;
   };
 }