diff --git a/pkgs/by-name/bc/bcachefs-tools/kernel-module.nix b/pkgs/by-name/bc/bcachefs-tools/kernel-module.nix
index 3660cf09f7d2..614410a039aa 100644
--- a/pkgs/by-name/bc/bcachefs-tools/kernel-module.nix
+++ b/pkgs/by-name/bc/bcachefs-tools/kernel-module.nix
@@ -11,9 +11,15 @@ stdenv.mkDerivation {
   version = "${kernel.version}-${bcachefs-tools.version}";
 
   __structuredAttrs = true;
+  strictDeps = true;
 
   src = bcachefs-tools.dkms;
 
+  postPatch = ''
+    substituteInPlace src/fs/bcachefs/Makefile \
+      --replace-fail '$(objtree)/vmlinux' '${kernel.dev}/vmlinux'
+  '';
+
   nativeBuildInputs = kernel.moduleBuildDependencies;
 
   enableParallelBuilding = true;