diff --git a/package.json b/package.json
index 159ddce..1dacae6 100644
--- a/package.json
+++ b/package.json
@@ -87,7 +87,7 @@
     "build": "tsup --onSuccess \"pnpm run setup\"",
     "watch": "pnpm run build -- --watch",
     "build-types": "tsc --emitDeclarationOnly",
-    "setup-package": "node ./scripts/setupPackage.js",
+    "setup-package": "node ./scripts/setupPackage.mjs",
     "setup": "pnpm run build-types && pnpm run setup-package && echo ✔️  Successfully built Sandstone.",
     "publishToNpm": "pnpm run build && pnpm publish",
     "format": "eslint src --cache --fix --quiet"
diff --git a/src/arguments/generated/index.ts b/src/arguments/generated/index.ts
index cdc8e3d..96bd92f 100644
--- a/src/arguments/generated/index.ts
+++ b/src/arguments/generated/index.ts
@@ -1,24 +1,24 @@
-export * from './attribute'
-export * from './banner_pattern'
-export * from './block'
-export * from './cat_variant'
-export * from './criterion'
-export * from './damage_type'
-export * from './dimension'
-export * from './enchantment'
-export * from './entity_type'
-export * from './fluid'
-export * from './game_event'
-export * from './item'
-export * from './mob_effect'
-export * from './painting_variant'
-export * from './particle_type'
-export * from './point_of_interest_type'
-export * from './sound_event'
-export * from './structure'
-export * from './tag/damage_type'
-export * from './translation'
-export * from './worldgen/biome'
-export * from './worldgen/configured_feature'
-export * from './worldgen/structure'
-export * from './worldgen/template_pool'
+export * from './attribute.js'
+export * from './banner_pattern.js'
+export * from './block.js'
+export * from './cat_variant.js'
+export * from './criterion.js'
+export * from './damage_type.js'
+export * from './dimension.js'
+export * from './enchantment.js'
+export * from './entity_type.js'
+export * from './fluid.js'
+export * from './game_event.js'
+export * from './item.js'
+export * from './mob_effect.js'
+export * from './painting_variant.js'
+export * from './particle_type.js'
+export * from './point_of_interest_type.js'
+export * from './sound_event.js'
+export * from './structure.js'
+export * from './tag/damage_type.js'
+export * from './translation.js'
+export * from './worldgen/biome.js'
+export * from './worldgen/configured_feature.js'
+export * from './worldgen/structure.js'
+export * from './worldgen/template_pool.js'