diff --git a/.npmignore b/.npmignore
index aacaa8f822e7c..b90057457893b 100644
--- a/.npmignore
+++ b/.npmignore
@@ -12,6 +12,7 @@ node_modules/.bin
 node_modules/npm-registry-mock
 /npmrc
 /release/
+/coverage/
 
 # don't need these in the npm package.
 html/*.png