diff --git a/pkgs/by-name/al/alsa-lib-with-plugins/package.nix b/pkgs/by-name/al/alsa-lib-with-plugins/package.nix
index d1d397132ba54..0057066103772 100644
--- a/pkgs/by-name/al/alsa-lib-with-plugins/package.nix
+++ b/pkgs/by-name/al/alsa-lib-with-plugins/package.nix
@@ -17,6 +17,11 @@ runCommand "${alsa-lib.pname}-${alsa-lib.version}"
   {
     meta = with lib; {
       description = "Wrapper to ease access to ALSA plugins";
+      longDescription = ''
+        Wrapper to ease access to ALSA plugins.
+
+        maintainer e-mail contact: Isidor Zeuner (gm6k) <nix@quidecco.pl>
+      '';
       mainProgram = "aserver";
       platforms = platforms.linux;
     };
diff --git a/pkgs/by-name/mi/minetest-mapserver/package.nix b/pkgs/by-name/mi/minetest-mapserver/package.nix
index 34a2576deb502..258d8a6c25694 100644
--- a/pkgs/by-name/mi/minetest-mapserver/package.nix
+++ b/pkgs/by-name/mi/minetest-mapserver/package.nix
@@ -19,6 +19,11 @@ buildGoModule rec {
 
   meta = {
     description = "Realtime mapserver for minetest";
+    longDescription = ''
+      Realtime mapserver for minetest.
+
+      maintainer e-mail contact: Isidor Zeuner (gm6k) <nix@quidecco.pl>
+    '';
     mainProgram = "mapserver";
     homepage = "https://github.com/minetest-mapserver/mapserver/blob/master/readme.md";
     changelog = "https://github.com/minetest-mapserver/mapserver/releases/tag/v${version}";
diff --git a/pkgs/development/python-modules/pyldavis/default.nix b/pkgs/development/python-modules/pyldavis/default.nix
index d9fe6d3c0dd87..23425ca861e6a 100644
--- a/pkgs/development/python-modules/pyldavis/default.nix
+++ b/pkgs/development/python-modules/pyldavis/default.nix
@@ -43,6 +43,11 @@ buildPythonPackage rec {
   meta = with lib; {
     homepage = "https://github.com/bmabey/pyLDAvis";
     description = "Python library for interactive topic model visualization";
+    longDescription = ''
+      Python library for interactive topic model visualization.
+
+      maintainer e-mail contact: Isidor Zeuner (gm6k) <nix@quidecco.pl>
+    '';
     license = licenses.bsd3;
     sourceProvenance = with sourceTypes; [ fromSource ];
     platforms = platforms.all;