diff --git a/pkgs/development/ocaml-modules/cryptokit/default.nix b/pkgs/development/ocaml-modules/cryptokit/default.nix
index 8180373a3dd9..8181433e1ee7 100644
--- a/pkgs/development/ocaml-modules/cryptokit/default.nix
+++ b/pkgs/development/ocaml-modules/cryptokit/default.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation {
 
   buildFlags = "setup.data build";
 
-  preBuild = "mkdir -p $out/lib/ocaml/${ocaml.version}/site-lib/cryptokit";
+  preBuild = "mkdir -p $out/lib/ocaml/${ocaml.version}/site-lib/stublibs";
 
   meta = {
     homepage = http://pauillac.inria.fr/~xleroy/software.html;