diff --git a/build.sh b/build.sh
index c547025..91fe8cd 100755
--- a/build.sh
+++ b/build.sh
@@ -7,5 +7,5 @@ yarn build
 cd ..
 [[ -d web-ext-artifacts ]] || mkdir web-ext-artifacts
 FILENAME="$(basename "$PWD")-$(jq -r .version manifest.json).zip"
-zip -r "web-ext-artifacts/$FILENAME" LICENSE gmcr.js manifest.json popup/build/ icons/
+zip -r "web-ext-artifacts/$FILENAME" LICENSE gmcr.js manifest.json background.js popup/build/ icons/
 zip -r "web-ext-artifacts/source-$FILENAME" $(git ls-files)