diff --git a/pkgs/development/ocaml-modules/httpaf/default.nix b/pkgs/development/ocaml-modules/httpaf/default.nix
index ec39fd662995..c42cc1c36178 100644
--- a/pkgs/development/ocaml-modules/httpaf/default.nix
+++ b/pkgs/development/ocaml-modules/httpaf/default.nix
@@ -8,7 +8,7 @@
   alcotest,
 }:
 
-buildDunePackage rec {
+buildDunePackage (finalAttrs: {
   pname = "httpaf";
   version = "0.7.1";
 
@@ -16,8 +16,8 @@ buildDunePackage rec {
 
   src = fetchFromGitHub {
     owner = "inhabitedtype";
-    repo = pname;
-    rev = version;
+    repo = "httpaf";
+    rev = finalAttrs.version;
     sha256 = "0zk78af3qyvf6w66mg8sxygr6ndayzqw5s3zfxibvn121xwni26z";
   };
 
@@ -33,6 +33,6 @@ buildDunePackage rec {
     description = "High-performance, memory-efficient, and scalable web server for OCaml";
     license = lib.licenses.bsd3;
     maintainers = [ lib.maintainers.vbgl ];
-    inherit (src.meta) homepage;
+    inherit (finalAttrs.src.meta) homepage;
   };
-}
+})