diff --git a/packages/backend-core/package.json b/packages/backend-core/package.json
index 970a4aab8d..cf8d6fbe17 100644
--- a/packages/backend-core/package.json
+++ b/packages/backend-core/package.json
@@ -14,7 +14,7 @@
   "scripts": {
     "prebuild": "rimraf dist/",
     "prepack": "cp package.json dist",
-    "build": "node ./scripts/build.js && tsc -p tsconfig.build.json --emitDeclarationOnly --paths null",
+    "build": "tsc -p tsconfig.build.json --paths null && node ./scripts/build.js",
     "build:dev": "yarn prebuild && tsc --build --watch --preserveWatchOutput",
     "check:types": "tsc -p tsconfig.json --noEmit --paths null",
     "test": "bash scripts/test.sh",
diff --git a/packages/backend-core/scripts/build.js b/packages/backend-core/scripts/build.js
index b40404aade..9cc33d7b75 100644
--- a/packages/backend-core/scripts/build.js
+++ b/packages/backend-core/scripts/build.js
@@ -1,22 +1,4 @@
 #!/usr/bin/node
-
 const coreBuild = require("../../../scripts/build")
 
-coreBuild("./src/plugin/index.ts", "./dist/plugins.js")
 coreBuild("./src/index.ts", "./dist/index.js")
-
-const glob = require("glob")
-const inputFiles = [
-  ...glob.sync("./src/**/*.[tj]s", { nodir: true }),
-  ...glob.sync("./tests/**/*.[tj]s", { nodir: true }),
-]
-
-const path = require("path")
-for (const file of inputFiles) {
-  coreBuild(file, `./${path.join("dist", file.replace(/\.ts$/, ".js"))}`, {
-    skipMeta: true,
-    bundle: false,
-    forcedFormat: "cjs",
-    silent: true,
-  })
-}