diff --git a/index.js b/index.js
index 3eda1d5..e8fe258 100644
--- a/index.js
+++ b/index.js
@@ -113,7 +113,7 @@ function buildStatus(buildData, config) {
         return;
     }
 
-    const changedFiles = Hoek.reach(buildData, 'build.meta.commit.changedFiles').split(',');
+    const changedFiles = Hoek.reach(buildData, 'build.meta.commit.changedFiles', { default: '' }).split(',');
 
     let changedFilesStr = '';