diff --git a/overlays/linux-lava.nix b/overlays/linux-lava.nix
index 4cfa1a4..321532f 100644
--- a/overlays/linux-lava.nix
+++ b/overlays/linux-lava.nix
@@ -1,12 +1,16 @@
 self: super: let
   llvmPackages = super.llvmPackages_19;
   clangVersion = super.lib.versions.major llvmPackages.libclang.version;
+  addFlagsScript = "$out/nix-support/add-local-cc-cflags-before.sh";
   cc = llvmPackages.stdenv.cc.override {
     # :sob: see https://github.com/NixOS/nixpkgs/issues/142901
     bintools = llvmPackages.bintools;
+
+    # https://github.com/NixOS/nixpkgs/issues/368850
     extraBuildCommands = ''
+      cat <(echo "NIX_CC_WRAPPER_SUPPRESS_TARGET_WARNING=1") "${addFlagsScript}" > "${addFlagsScript}.new"
+      mv "${addFlagsScript}.new" "${addFlagsScript}"
       substituteInPlace "$out/nix-support/cc-cflags" --replace " -nostdlibinc" ""
-      substituteInPlace "$out/nix-support/add-local-cc-cflags-before.sh" --replace 'echo "Warning: supplying the --target argument to a nix-wrapped compiler may not work correctly - cc-wrapper is currently not designed with multi-target compilers in mind. You may want to use an un-wrapped compiler instead." >&2' ""
       echo " -resource-dir=${llvmPackages.libclang.lib}/lib/clang/${clangVersion}" >> $out/nix-support/cc-cflags
     '';
   };