diff --git a/pkgs/applications/science/biology/ncbi-tools/default.nix b/pkgs/applications/science/biology/ncbi-tools/default.nix
index 775e2ec3cc8c..e9d99aeb254c 100644
--- a/pkgs/applications/science/biology/ncbi-tools/default.nix
+++ b/pkgs/applications/science/biology/ncbi-tools/default.nix
@@ -9,16 +9,14 @@
 
 stdenv.mkDerivation rec {
   name = "ncbi_tools";
-  ncbi_version="Dec_31_2008";
+  ncbi_version = "Dec_31_2008";
   src = fetchurl {
     url = "ftp://ftp.ncbi.nih.gov/toolbox/ncbi_tools++/2008/${ncbi_version}/ncbi_cxx--${ncbi_version}.tar.gz";
     sha256 = "1b2v0dcdqn3bysgdkj57sxmd6s0hc9wpnxssviz399g6plhxggbr";
   };
 
   configureFlags = "--without-debug --with-bin-release --with-dll --without-static";
-  # PIC flag (position independent code for shared libraries)
-  NIX_CXXFLAGS_COMPILE = if stdenv.system == "x86_64-linux" then "-fPIC" else "";
-  buildInputs = [cpio];
+  buildInputs = [ cpio ];
 
   meta = {
     description = ''NCBI Bioinformatics toolbox (incl. BLAST)'';
@@ -26,5 +24,6 @@ stdenv.mkDerivation rec {
     homepage = http://www.ncbi.nlm.nih.gov/IEB/ToolBox/; 
     license = "GPL";
     priority = "5";   # zlib.so gives a conflict with zlib
+    broken = true;
   };
 }