diff --git a/.npmignore b/.npmignore
index 0e0e7cb135..f5d2bf96c2 100644
--- a/.npmignore
+++ b/.npmignore
@@ -23,6 +23,7 @@ node_modules/**
 *.iml
 config.js
 core/built/**/*.map
+core/built/**/test-*
 core/client/**
 core/test/**
 CONTRIBUTING.md