diff --git a/pkgs/development/compilers/nasm/default.nix b/pkgs/development/compilers/nasm/default.nix
index 0c22d790bc5..fad8a584ed2 100644
--- a/pkgs/development/compilers/nasm/default.nix
+++ b/pkgs/development/compilers/nasm/default.nix
@@ -2,8 +2,8 @@
 
 stdenv.mkDerivation rec {
   name = "nasm-${version}";
-  version = "2.11.05";
-  
+  version = "2.11.05"; # do not update until syslinux is fixed with that version
+
   src = fetchurl {
     url = "http://www.nasm.us/pub/nasm/releasebuilds/${version}/${name}.tar.bz2";
     sha256 = "1sgspnascc0asmwlv3jm1mq4vzx653sa7vlg48z20pfybk7pnhaa";