diff --git a/pkgs/top-level/perl-packages.nix b/pkgs/top-level/perl-packages.nix
index 83339c3e3c81..58d0a51ebc4d 100644
--- a/pkgs/top-level/perl-packages.nix
+++ b/pkgs/top-level/perl-packages.nix
@@ -5528,7 +5528,7 @@ with self; {
     };
   };
 
-  CSSMinifierXS = buildPerlModule {
+  CSSMinifierXS = buildPerlPackage {
     pname = "CSS-Minifier-XS";
     version = "0.13";
     src = fetchurl {
@@ -5536,6 +5536,7 @@ with self; {
       hash = "sha256-xBnjCM3IKvHCXWuNB7L/JjR6Yit6Y+wghWq+jbQFH4I=";
     };
     perlPreHook = lib.optionalString (stdenv.isi686 || stdenv.isDarwin) "export LD=$CC";
+    buildInputs = [ TestDiagINC ];
     meta = {
       description = "XS based CSS minifier";
       homepage = "https://metacpan.org/release/CSS-Minifier-XS";