diff --git a/maintainers/scripts/luarocks-packages.csv b/maintainers/scripts/luarocks-packages.csv
index 62f9fa722d9..cb934ae3752 100644
--- a/maintainers/scripts/luarocks-packages.csv
+++ b/maintainers/scripts/luarocks-packages.csv
@@ -9,6 +9,7 @@ busted,,,,,
 cassowary,,,,,marsam
 cjson,lua-cjson,,,,
 compat53,,,,,vcunat
+cosmo,,,,,marsam
 coxpcall,,,1.17.0-1,,
 cqueues,,,,,vcunat
 cyrussasl,,,,,vcunat
diff --git a/pkgs/development/lua-modules/generated-packages.nix b/pkgs/development/lua-modules/generated-packages.nix
index 1090123416e..58af59c1971 100644
--- a/pkgs/development/lua-modules/generated-packages.nix
+++ b/pkgs/development/lua-modules/generated-packages.nix
@@ -214,6 +214,23 @@ compat53 = buildLuarocksPackage {
     };
   };
 };
+cosmo = buildLuarocksPackage {
+  pname = "cosmo";
+  version = "16.06.04-1";
+
+  src = fetchurl {
+    url    = mirror://luarocks/cosmo-16.06.04-1.src.rock;
+    sha256 = "1adrk74j0x1yzhy0xz9k80hphxdjvm09kpwpbx00sk3kic6db0ww";
+  };
+  propagatedBuildInputs = [ lpeg ];
+
+  meta = with stdenv.lib; {
+    homepage = "http://cosmo.luaforge.net";
+    description = "Safe templates for Lua";
+    maintainers = with maintainers; [ marsam ];
+    license.fullName = "MIT/X11";
+  };
+};
 coxpcall = buildLuarocksPackage {
   pname = "coxpcall";
   version = "1.17.0-1";