diff --git a/VolumeManager.h b/VolumeManager.h
index 6c094fc..fa2237f 100644
--- a/VolumeManager.h
+++ b/VolumeManager.h
@@ -118,7 +118,9 @@
     std::shared_ptr<android::vold::Disk> findDisk(const std::string& id);
     std::shared_ptr<android::vold::VolumeBase> findVolume(const std::string& id);
 
-    nsecs_t benchmarkVolume(const std::string& id);
+    void listVolumes(android::vold::VolumeBase::Type type, std::list<std::string>& list);
+
+    nsecs_t benchmarkPrivate(const std::string& id);
 
     int forgetPartition(const std::string& partGuid);