diff --git a/pkgs/development/tools/ocaml/deriving/default.nix b/pkgs/development/tools/ocaml/deriving/default.nix
index baa6bce4d43..d53f41b5da5 100644
--- a/pkgs/development/tools/ocaml/deriving/default.nix
+++ b/pkgs/development/tools/ocaml/deriving/default.nix
@@ -32,7 +32,7 @@ versionedDerivation "ocaml-deriving" version {
   };
 
   "for-3.12.1" = {
-    name = "deriving-more-recent";
+    name = "deriving-git20100903";
 
     # https://github.com/jaked/deriving
     src = fetchurl {