diff --git a/lib/src/drives.js b/lib/src/drives.js
index ae9b651d..4ee8f8b8 100644
--- a/lib/src/drives.js
+++ b/lib/src/drives.js
@@ -35,9 +35,7 @@ const drivelist = Bluebird.promisifyAll(require('drivelist'));
  * });
  */
 exports.listRemovable = function() {
-  return drivelist.listAsync().then(function(drives) {
-    return drives.filter(function(drive) {
-      return !drive.system;
-    });
+  return drivelist.listAsync().filter(function(drive) {
+    return !drive.system;
   });
 };