diff --git a/artiq-fast/conda/builder-env.nix b/artiq-fast/conda/builder-env.nix
index 8ef0d9c..b5bbbbc 100644
--- a/artiq-fast/conda/builder-env.nix
+++ b/artiq-fast/conda/builder-env.nix
@@ -43,12 +43,15 @@ let
     ln -s ${libiconv} ${libiconv-filename}
     ${condaInstallerEnv}/bin/conda-installer-env -c "$out/bin/conda install ${libiconv-filename}"
     '';
+
+  binutils-fhs = (pkgs.binutils.overrideAttrs(oa: {postFixup = oa.postFixup + "echo /lib64/ld-linux-x86-64.so.2 > $out/nix-support/dynamic-linker";}));
+  gcc-fhs = (pkgs.gcc.override {bintools = binutils-fhs;} );
 in
   buildFHSUserEnv {
     name = "conda-builder-env";
     targetPkgs = pkgs: ([ condaInstalled ] ++ condaDeps ++ [
-        binutils
-        gcc
+        binutils-fhs
+        gcc-fhs
         # for llvm-or1k
         cmake
       ]