diff --git a/pkgs/tools/system/facter/default.nix b/pkgs/tools/system/facter/default.nix
index ad90a52a5bdb..bd58dbf6e122 100644
--- a/pkgs/tools/system/facter/default.nix
+++ b/pkgs/tools/system/facter/default.nix
@@ -14,11 +14,13 @@ stdenv.mkDerivation rec {
   CXXFLAGS = "-fpermissive -Wno-error=catch-value";
   NIX_LDFLAGS = "-lblkid";
 
-  cmakeFlags = [ 
+  cmakeFlags = [
     "-DFACTER_RUBY=${ruby}/lib/libruby.so"
     "-DRUBY_LIB_INSTALL=${placeholder "out"}/lib/ruby"
   ];
 
+  NIX_CFLAGS_COMPILE = "-Wno-error=deprecated-copy";
+
   nativeBuildInputs = [ cmake ];
   buildInputs = [ boost cpp-hocon curl leatherman libwhereami libyamlcpp openssl ruby utillinux ];