diff --git a/pkgs/top-level/perl-packages.nix b/pkgs/top-level/perl-packages.nix
index dcf1048857d..74c203d1078 100644
--- a/pkgs/top-level/perl-packages.nix
+++ b/pkgs/top-level/perl-packages.nix
@@ -5657,7 +5657,7 @@ let self = _self // overrides; _self = with self; {
       sha256 = "84ac24fb1d551f998145435265e5b6fd4a52ec61e4fadd3d7755eb648be2c4b2";
     };
     buildInputs = [ TestDeep ];
-    propagatedBuildInputs = [ CacheCache ClassContainer ExceptionClass HTMLParser LogAny ParamsValidate ];
+    propagatedBuildInputs = [ CacheCache CGI ClassContainer ExceptionClass HTMLParser LogAny ParamsValidate ];
     meta = {
       homepage = http://metacpan.org/release/HTML-Mason;
       description = "High-performance, dynamic web site authoring system";