diff --git a/Demos3/AllBullet2Demos/premake4.lua b/Demos3/AllBullet2Demos/premake4.lua
index 9b8ab7fc9..26125ce52 100644
--- a/Demos3/AllBullet2Demos/premake4.lua
+++ b/Demos3/AllBullet2Demos/premake4.lua
@@ -46,6 +46,7 @@
 		"../bullet2/MultiBodyDemo/TestJointTorqueSetup.h",
 	--	"../DifferentialGearDemo/DifferentialGearSetup.cpp",
 --		"../DifferentialGearDemo/DifferentialGearSetup.h",
+		"../FiniteElementMethod/FiniteElementDemo.cpp",
 		"../../Demos/BasicDemo/BasicDemoPhysicsSetup.cpp",
 		"../../Demos/BasicDemo/BasicDemoPhysicsSetup.h",
 		"../../Demos/CcdPhysicsDemo/CcdPhysicsSetup.cpp",
diff --git a/Demos3/FiniteElementMethod/OpenTissue/dynamics/fem/fem_dynamics_assembly.h b/Demos3/FiniteElementMethod/OpenTissue/dynamics/fem/fem_dynamics_assembly.h
index 8a8d9919f..da09007a0 100644
--- a/Demos3/FiniteElementMethod/OpenTissue/dynamics/fem/fem_dynamics_assembly.h
+++ b/Demos3/FiniteElementMethod/OpenTissue/dynamics/fem/fem_dynamics_assembly.h
@@ -61,8 +61,8 @@ namespace OpenTissue
 
 		for (int n = 0;n<mesh.m_nodes.size();n++)
 		{
-		  fem_mesh::node_type& ni = mesh.m_nodes[n];
-		  if (ni.m_mass)
+		  //fem_mesh::node_type& ni = mesh.m_nodes[n];
+		  //if (ni.m_mass)
 		  {
 			  unsigned int i     =  n_i->idx();
 			  vector3_type & b_i =  n_i->m_b;