diff --git a/pkgs/top-level/perl-packages.nix b/pkgs/top-level/perl-packages.nix
index 8b04e1ea06a..e5a8b770fde 100644
--- a/pkgs/top-level/perl-packages.nix
+++ b/pkgs/top-level/perl-packages.nix
@@ -14167,6 +14167,7 @@ let self = _self // overrides; _self = with self; {
         substituteInPlace Makefile.PL --replace '"cpp"' '"gcc -E"'
         substituteInPlace Makefile.PL --replace '_LASTENTRY\z' '_LASTENTRY\z|CURL_DID_MEMORY_FUNC_TYPEDEFS\z'
       '';
+    NIX_CFLAGS_COMPILE = "-DCURL_STRICTER";
     doCheck = false; # performs network access
   };