diff --git a/pkgs/development/tools/analysis/egypt/default.nix b/pkgs/development/tools/analysis/egypt/default.nix
index fc63247468c..572e2f74471 100644
--- a/pkgs/development/tools/analysis/egypt/default.nix
+++ b/pkgs/development/tools/analysis/egypt/default.nix
@@ -9,6 +9,8 @@ buildPerlPackage rec {
     url = "http://www.gson.org/egypt/download/${name}.tar.gz";
   };
 
+  outputs = [ "out" ];
+
   enableParallelBuilding = true;
 
   doCheck = true;
diff --git a/pkgs/development/web/wml/default.nix b/pkgs/development/web/wml/default.nix
index 22cc5001c92..3d47d32f1c8 100644
--- a/pkgs/development/web/wml/default.nix
+++ b/pkgs/development/web/wml/default.nix
@@ -8,6 +8,8 @@ perlPackages.buildPerlPackage rec {
     sha256 = "0jjxpq91x7y2mgixz7ghqp01m24qa37wl3zz515rrzv7x8cyy4cf";
   };
 
+  setOutputFlags = false;
+
   # Getting lots of Non-ASCII character errors from pod2man.
   # Inserting =encoding utf8 before the first =head occurrence.
   # Wasn't able to fix mp4h.
diff --git a/pkgs/servers/foswiki/default.nix b/pkgs/servers/foswiki/default.nix
index c5831325958..5bfeef6f1fc 100644
--- a/pkgs/servers/foswiki/default.nix
+++ b/pkgs/servers/foswiki/default.nix
@@ -9,6 +9,8 @@ perlPackages.buildPerlPackage rec {
     sha256 = "03286pb966h99zgickm2f20rgnqwp9wga5wfkdvirv084kjdh8vp";
   };
 
+  outputs = [ "out" ];
+
   buildInputs = with perlPackages; [
     # minimum requirements from INSTALL.html#System_Requirements
     AlgorithmDiff ArchiveTar AuthenSASL CGI CGISession CryptPasswdMD5
@@ -30,7 +32,7 @@ perlPackages.buildPerlPackage rec {
 
   # there's even no makefile
   doCheck = false;
-  installPhase = ''cp -r . "$out" ''; # TODO: some fixups will be needed for running it
+  installPhase = ''cp -r . "$out" '';
 
   meta = with stdenv.lib; {
     description = "An open, programmable collaboration platform";