diff --git a/packages/backend-core/package.json b/packages/backend-core/package.json
index 3e1b5f324ba..1ab05cd14ba 100644
--- a/packages/backend-core/package.json
+++ b/packages/backend-core/package.json
@@ -21,7 +21,7 @@
   "scripts": {
     "prebuild": "rimraf dist/",
     "prepack": "cp package.json dist",
-    "build": "node ./scripts/build.js && tsc -p tsconfig.build.json --emitDeclarationOnly --paths null",
+    "build": "node ./scripts/build.js && tsc -p tsconfig.build.json --emitDeclarationOnly --paths null && tsc -p tsconfig.test.json --paths null",
     "build:dev": "yarn prebuild && tsc --build --watch --preserveWatchOutput",
     "build:oss": "node ./scripts/build.js",
     "check:types": "tsc -p tsconfig.json --noEmit --paths null",
diff --git a/packages/backend-core/tsconfig.test.json b/packages/backend-core/tsconfig.test.json
new file mode 100644
index 00000000000..0e3e7a79b2d
--- /dev/null
+++ b/packages/backend-core/tsconfig.test.json
@@ -0,0 +1,9 @@
+{
+  "extends": "../../tsconfig.build.json",
+  "compilerOptions": {
+    "outDir": "dist",
+    "sourceMap": true
+  },
+  "include": ["tests/**/*.js", "tests/**/*.ts"],
+  "exclude": ["node_modules", "dist"]
+}