diff --git a/pkgs/development/lua-modules/overrides.nix b/pkgs/development/lua-modules/overrides.nix
index 74ffea964395..7f06652e66b3 100644
--- a/pkgs/development/lua-modules/overrides.nix
+++ b/pkgs/development/lua-modules/overrides.nix
@@ -22,6 +22,7 @@
 , libmysqlclient
 , libuuid
 , libuv
+, libxcrypt
 , libyaml
 , mariadb
 , mpfr
@@ -336,6 +337,12 @@ with prev;
     ];
   });
 
+  luaposix = prev.luaLib.overrideLuarocks prev.luaposix (drv: {
+    externalDeps = [
+      { name = "CRYPT"; dep = libxcrypt; }
+    ];
+  });
+
   luasec = prev.luaLib.overrideLuarocks prev.luasec (drv: {
     externalDeps = [
       { name = "OPENSSL"; dep = openssl_1_1; }