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-rw-r--r--pkgs/development/ocaml-modules/cryptokit/default.nix2
1 files changed, 2 insertions, 0 deletions
diff --git a/pkgs/development/ocaml-modules/cryptokit/default.nix b/pkgs/development/ocaml-modules/cryptokit/default.nix
index 1f9e2b44e00..cfb353bfe3e 100644
--- a/pkgs/development/ocaml-modules/cryptokit/default.nix
+++ b/pkgs/development/ocaml-modules/cryptokit/default.nix
@@ -4,6 +4,8 @@ let
   ocaml_version = (builtins.parseDrvName ocaml.name).version;
 in
 
+assert stdenv.lib.versionAtLeast ocaml_version "3.12";
+
 stdenv.mkDerivation {
   name = "cryptokit-1.9";