diff --git a/gtsam/linear/HessianFactor.cpp b/gtsam/linear/HessianFactor.cpp
index 0ac280407..da57e302b 100644
--- a/gtsam/linear/HessianFactor.cpp
+++ b/gtsam/linear/HessianFactor.cpp
@@ -344,7 +344,6 @@ void HessianFactor::updateATA(const JacobianFactor& update, const Scatter& scatt
 		update.print("with (Jacobian): ");
 	}
 
-//	typedef Eigen::Block<typeof(update.matrix_)> BlockUpdateMatrix;
 	typedef Eigen::Block<const JacobianFactor::AbMatrix> BlockUpdateMatrix;
 	BlockUpdateMatrix updateA(update.matrix_.block(
 			update.Ab_.rowStart(),update.Ab_.offset(0), update.Ab_.full().rows(), update.Ab_.full().cols()));