diff --git a/src/system.js b/src/system.js
index fda9ee84c..4c3412541 100644
--- a/src/system.js
+++ b/src/system.js
@@ -261,7 +261,7 @@ async function updateDiskUsage(progressCallback) {
         }
     }
 
-    if (!safe.fs.writeFileSync(paths.DISK_USAGE_FILE, JSON.stringify({ ts: now, disks }), 'utf8')) throw new BoxError(BoxError.FS_ERROR, `Could not write du cache file: ${safe.error.message}`);
+    if (!safe.fs.writeFileSync(paths.DISK_USAGE_FILE, JSON.stringify({ ts: now, disks }, null, 4), 'utf8')) throw new BoxError(BoxError.FS_ERROR, `Could not write du cache file: ${safe.error.message}`);
 
     return disks;
 }