diff --git a/gtsam_unstable/slam/SmartProjectionPoseFactorRollingShutter.cpp b/gtsam_unstable/slam/SmartProjectionPoseFactorRollingShutter.cpp
deleted file mode 100644
index c0b22160a..000000000
--- a/gtsam_unstable/slam/SmartProjectionPoseFactorRollingShutter.cpp
+++ /dev/null
@@ -1,22 +0,0 @@
-/* ----------------------------------------------------------------------------
-
- * GTSAM Copyright 2010, Georgia Tech Research Corporation,
- * Atlanta, Georgia 30332-0415
- * All Rights Reserved
- * Authors: Frank Dellaert, et al. (see THANKS for the full author list)
-
- * See LICENSE for the license information
-
- * -------------------------------------------------------------------------- */
-
-/**
- * @file   SmartProjectionPoseFactorRollingShutter.h
- * @brief  Smart projection factor on poses modeling rolling shutter effect
- * @author Luca Carlone
- */
-
-//#include <gtsam_unstable/slam/SmartProjectionPoseFactorRollingShutter.h>
-
-namespace gtsam {
-
-}  // \ namespace gtsam