diff --git a/pkgs/top-level/perl-packages.nix b/pkgs/top-level/perl-packages.nix
index 2894f3181e4a..ac458810c23d 100644
--- a/pkgs/top-level/perl-packages.nix
+++ b/pkgs/top-level/perl-packages.nix
@@ -4111,6 +4111,10 @@ with self; {
     };
     nativeBuildInputs = [ pkgs.ld-is-cc-hook ];
     buildInputs = [ ModuleBuildXSUtil ];
+    #  src/compiler/util/Compiler_double_charactor_operator.cpp:9:54: error: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
+    env = lib.optionalAttrs stdenv.cc.isClang {
+      NIX_CFLAGS_COMPILE = "-Wno-error=register";
+    };
     meta = {
       homepage = "https://github.com/goccy/p5-Compiler-Lexer";
       description = "Lexical Analyzer for Perl5";