diff --git a/pkgs/os-specific/linux/syslinux/default.nix b/pkgs/os-specific/linux/syslinux/default.nix
index 150b2b447298..0210b23d8b58 100644
--- a/pkgs/os-specific/linux/syslinux/default.nix
+++ b/pkgs/os-specific/linux/syslinux/default.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
 
   buildInputs = [ nasm perl libuuid ];
 
-  enableParallelBuilding = true;
+  enableParallelBuilding = false; # Fails very rarely with 'No rule to make target: ...'
 
   preBuild = ''
     substituteInPlace Makefile --replace /bin/pwd $(type -P pwd)