diff --git a/pkgs/top-level/ocaml-packages.nix b/pkgs/top-level/ocaml-packages.nix
index 659b9243b6e..146405c7bad 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -390,7 +390,10 @@ let
 
     sequence = callPackage ../development/ocaml-modules/sequence { };
 
-    spacetime_lib = callPackage ../development/ocaml-modules/spacetime_lib { };
+    spacetime_lib = if lib.versionOlder "4.04" ocaml.version then
+    callPackage ../development/tools/ocaml/ocamlbuild { }
+    else
+    null;
 
     sqlexpr = callPackage ../development/ocaml-modules/sqlexpr { };