diff --git a/fs_mgr/libsnapshot/utility.h b/fs_mgr/libsnapshot/utility.h
index 16aa81a..eff6f10 100644
--- a/fs_mgr/libsnapshot/utility.h
+++ b/fs_mgr/libsnapshot/utility.h
@@ -59,7 +59,6 @@
     // On destruct, delete |name| from device mapper.
     AutoUnmapDevice(android::dm::IDeviceMapper* dm, const std::string& name)
         : AutoDevice(name), dm_(dm) {}
-    AutoUnmapDevice(AutoUnmapDevice&& other) = default;
     ~AutoUnmapDevice();
 
   private:
@@ -72,7 +71,6 @@
     // On destruct, delete |name| from image manager.
     AutoUnmapImage(android::fiemap::IImageManager* images, const std::string& name)
         : AutoDevice(name), images_(images) {}
-    AutoUnmapImage(AutoUnmapImage&& other) = default;
     ~AutoUnmapImage();
 
   private:
@@ -86,7 +84,6 @@
     AutoDeleteSnapshot(SnapshotManager* manager, SnapshotManager::LockedFile* lock,
                        const std::string& name)
         : AutoDevice(name), manager_(manager), lock_(lock) {}
-    AutoDeleteSnapshot(AutoDeleteSnapshot&& other);
     ~AutoDeleteSnapshot();
 
   private: