diff --git a/addons/xterm-addon-webgl/.npmignore b/addons/xterm-addon-webgl/.npmignore
index 1c794445..5e5c6068 100644
--- a/addons/xterm-addon-webgl/.npmignore
+++ b/addons/xterm-addon-webgl/.npmignore
@@ -3,3 +3,5 @@
 tsconfig.json
 .yarnrc
 webpack.config.js
+out-test/
+test/