diff --git a/pkgs/development/libraries/libmpack/default.nix b/pkgs/development/libraries/libmpack/default.nix
index cdc45956e7a3..736474d29a5f 100644
--- a/pkgs/development/libraries/libmpack/default.nix
+++ b/pkgs/development/libraries/libmpack/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   pname = "libmpack";
   version = "1.0.5";
   src = fetchFromGitHub {
-    owner = "tarruda";
+    owner = "libmpack";
     repo = "libmpack";
     rev = version;
     sha256 = "0rai5djdkjz7bsn025k5489in7r1amagw1pib0z4qns6b52kiar2";
diff --git a/pkgs/development/lua-modules/overrides.nix b/pkgs/development/lua-modules/overrides.nix
index cb429e59c927..84a15e8a674b 100644
--- a/pkgs/development/lua-modules/overrides.nix
+++ b/pkgs/development/lua-modules/overrides.nix
@@ -294,6 +294,12 @@ with super;
     };
   });
 
+  mpack = super.mpack.override({
+    buildInputs = [ pkgs.libmpack ];
+    # the rockspec doesn't use the makefile so you may need to export more flags
+    USE_SYSTEM_LUA = "yes";
+    USE_SYSTEM_MPACK = "yes";
+  });
 
   rapidjson = super.rapidjson.override({
     preBuild = ''