diff --git a/pkgs/development/tools/ocaml/findlib/default.nix b/pkgs/development/tools/ocaml/findlib/default.nix
index 48728e02b17..9a2a6b0d94a 100644
--- a/pkgs/development/tools/ocaml/findlib/default.nix
+++ b/pkgs/development/tools/ocaml/findlib/default.nix
@@ -40,7 +40,6 @@ stdenv.mkDerivation {
             export OCAMLPATH="''${OCAMLPATH}''${OCAMLPATH:+:}''$1/lib/ocaml/${ocaml_version}/site-lib/"
         fi
         export OCAMLFIND_DESTDIR="''$out/lib/ocaml/${ocaml_version}/site-lib/"
-        ensureDir ''$OCAMLFIND_DESTDIR
     }
     
     envHooks=(''${envHooks[@]} addOCamlPath)