diff --git a/lib/util/lerna.js b/lib/util/lerna.js
index 2e9c59e7..b5fdf1dd 100755
--- a/lib/util/lerna.js
+++ b/lib/util/lerna.js
@@ -29,7 +29,7 @@ const getAllPackages = (state) => {
 
 const getChangedFiles = () => {
   const devNull = process.platform === 'win32' ? ' nul' : '/dev/null'
-  execSync('git diff --cached --name-only 2>' + devNull)
+  return execSync('git diff --cached --name-only 2>' + devNull)
     .toString()
     .trim()
     .split('\n');