diff --git a/pkgs/development/coq-modules/itauto/default.nix b/pkgs/development/coq-modules/itauto/default.nix
index 22f3eb2d9f21..ede84f75f6a7 100644
--- a/pkgs/development/coq-modules/itauto/default.nix
+++ b/pkgs/development/coq-modules/itauto/default.nix
@@ -75,7 +75,7 @@
   (
     o:
     lib.optionalAttrs (o.version == "dev" || lib.versionAtLeast o.version "8.16") {
-      propagatedBuildInputs = [ coq.ocamlPackages.findlib ];
+      propagatedBuildInputs = o.propagatedBuildInputs ++ [ coq.ocamlPackages.findlib ];
     }
     // lib.optionalAttrs (o.version == "dev" || lib.versionAtLeast o.version "8.18") {
       nativeBuildInputs = with coq.ocamlPackages; [