diff --git a/pkgs/development/ocaml-modules/ppx_tools_versioned/default.nix b/pkgs/development/ocaml-modules/ppx_tools_versioned/default.nix
index 728f95c0e7b6..5d4e4366e4d5 100644
--- a/pkgs/development/ocaml-modules/ppx_tools_versioned/default.nix
+++ b/pkgs/development/ocaml-modules/ppx_tools_versioned/default.nix
@@ -5,7 +5,7 @@
   ocaml-migrate-parsetree,
 }:
 
-buildDunePackage rec {
+buildDunePackage (finalAttrs: {
   pname = "ppx_tools_versioned";
   version = "5.4.0";
 
@@ -13,8 +13,8 @@ buildDunePackage rec {
 
   src = fetchFromGitHub {
     owner = "ocaml-ppx";
-    repo = pname;
-    rev = version;
+    repo = "ppx_tools_versioned";
+    rev = finalAttrs.version;
     sha256 = "07lnj4yzwvwyh5fhpp1dxrys4ddih15jhgqjn59pmgxinbnddi66";
   };
 
@@ -26,4 +26,4 @@ buildDunePackage rec {
     license = lib.licenses.gpl2;
     maintainers = [ ];
   };
-}
+})