diff --git a/package.sh b/package.sh
index efb1b4f..8da5276 100755
--- a/package.sh
+++ b/package.sh
@@ -4,7 +4,7 @@ rm -rf node_modules
 
 npm install --production
 
-shasum --algorithm 256 manifest.json package.json *.js LICENSE README.md > SHA256SUMS
+shasum --algorithm 256 manifest.json package.json *.js lib/*.js LICENSE README.md > SHA256SUMS
 
 find node_modules \( -type f -o -type l \) -exec shasum --algorithm 256 {} \; >> SHA256SUMS
 
@@ -16,4 +16,4 @@ tar czf ${TARFILE} package
 
 shasum --algorithm 256 ${TARFILE} > ${TARFILE}.sha256sum
 
-rm -rf SHA256SUMS package
\ No newline at end of file
+rm -rf SHA256SUMS package