diff --git a/headers/private/kernel/disk_device_manager/KDiskDeviceManager.h b/headers/private/kernel/disk_device_manager/KDiskDeviceManager.h
index 7dfc1c5b27..12cf7e4bc5 100644
--- a/headers/private/kernel/disk_device_manager/KDiskDeviceManager.h
+++ b/headers/private/kernel/disk_device_manager/KDiskDeviceManager.h
@@ -123,6 +123,8 @@ public:
 	status_t RescanDiskSystems();
 
 private:
+	status_t _RescanDiskSystems(bool fileSystems);
+
 	status_t _AddPartitioningSystem(const char *name);
 	status_t _AddFileSystem(const char *name);
 	status_t _AddDiskSystem(KDiskSystem *diskSystem);