diff --git a/package.json b/package.json
index 08c64273..809fc1aa 100644
--- a/package.json
+++ b/package.json
@@ -52,7 +52,7 @@
     "prepack": "yarn run build",
     "test": "mocha --forbid-only \"test/**/*.test.ts\"",
     "version": "conventional-changelog -p angular -i CHANGELOG.md -s -r 0 && git add CHANGELOG.md",
-    "pretest": "tsc -p test --noEmit"
+    "pretest": "yarn build --noEmit && tsc -p test --noEmit"
   },
   "types": "lib/index.d.ts"
 }