1 files changed, 2 insertions, 4 deletions
diff --git a/pkgs/development/coq-modules/simple-io/default.nix b/pkgs/development/coq-modules/simple-io/default.nix
index bcc391c4f72..ca7325711e2 100644
--- a/pkgs/development/coq-modules/simple-io/default.nix
+++ b/pkgs/development/coq-modules/simple-io/default.nix
@@ -11,11 +11,9 @@ with lib; mkCoqDerivation {
   ] null;
   release."1.7.0".sha256 = "sha256:1a1q9x2abx71hqvjdai3n12jxzd49mhf3nqqh3ya2ssl2lj609ci";
   release."1.3.0".sha256 = "1yp7ca36jyl9kz35ghxig45x6cd0bny2bpmy058359p94wc617ax";
-  extraNativeBuildInputs = (with coq.ocamlPackages; [ cppo zarith ]);
-  propagatedBuildInputs = [ coq-ext-lib ]
-  ++ (with coq.ocamlPackages; [ ocaml ocamlbuild ]);
-
   mlPlugin = true;
+  nativeBuildInputs = [ coq.ocamlPackages.cppo ];
+  propagatedBuildInputs = [ coq-ext-lib coq.ocamlPackages.ocamlbuild ];
 
   doCheck = true;
   checkTarget = "test";