diff --git a/pkgs/servers/http/unit/default.nix b/pkgs/servers/http/unit/default.nix
index d39c25bec2a..38212885541 100644
--- a/pkgs/servers/http/unit/default.nix
+++ b/pkgs/servers/http/unit/default.nix
@@ -4,7 +4,6 @@
 , php71
 , php72
 , php73
-, perl526
 , perl
 , perldevel
 , ruby_2_3
@@ -32,7 +31,6 @@ stdenv.mkDerivation rec {
     php71
     php72
     php73
-    perl526
     perl
     perldevel
     ruby_2_3
@@ -52,7 +50,6 @@ stdenv.mkDerivation rec {
     ./configure php     --module=php71     --config=${php71.dev}/bin/php-config  --lib-path=${php71}/lib
     ./configure php     --module=php72     --config=${php72.dev}/bin/php-config  --lib-path=${php72}/lib
     ./configure php     --module=php73     --config=${php73.dev}/bin/php-config  --lib-path=${php73}/lib
-    ./configure perl    --module=perl526   --perl=${perl526}/bin/perl
     ./configure perl    --module=perl      --perl=${perl}/bin/perl
     ./configure perl    --module=perl529   --perl=${perldevel}/bin/perl
     ./configure ruby    --module=ruby23    --ruby=${ruby_2_3}/bin/ruby