diff --git a/src/BulletSoftBody/btDeformableCorotatedForce.h b/src/BulletSoftBody/btDeformableCorotatedForce.h
index bf3c52e50..4d9b8440e 100644
--- a/src/BulletSoftBody/btDeformableCorotatedForce.h
+++ b/src/BulletSoftBody/btDeformableCorotatedForce.h
@@ -117,23 +117,6 @@ public:
     
     virtual void addScaledForceDifferential(btScalar scale, const TVStack& dv, TVStack& df)
     {
-        // implicit damping force differential
-        for (int i = 0; i < m_softBodies.size(); ++i)
-        {
-            const btSoftBody* psb = m_softBodies[i];
-            btScalar scaled_k_damp = psb->m_dampingCoefficient * scale;
-            for (int j = 0; j < psb->m_links.size(); ++j)
-            {
-                const btSoftBody::Link& link = psb->m_links[j];
-                btSoftBody::Node* node1 = link.m_n[0];
-                btSoftBody::Node* node2 = link.m_n[1];
-                size_t id1 = node1->index;
-                size_t id2 = node2->index;
-                btVector3 local_scaled_df = scaled_k_damp * (dv[id2] - dv[id1]);
-                df[id1] += local_scaled_df;
-                df[id2] -= local_scaled_df;
-            }
-        }
     }
     
     virtual btDeformableLagrangianForceType getForceType()
diff --git a/src/BulletSoftBody/btDeformableRigidDynamicsWorld.cpp b/src/BulletSoftBody/btDeformableRigidDynamicsWorld.cpp
index 900ca9d8c..26aa7f82f 100644
--- a/src/BulletSoftBody/btDeformableRigidDynamicsWorld.cpp
+++ b/src/BulletSoftBody/btDeformableRigidDynamicsWorld.cpp
@@ -131,15 +131,6 @@ void btDeformableRigidDynamicsWorld::positionCorrection(btScalar timeStep)
                 // only perform position correction when penetrating
                 if (dp < 0)
                 {
-                    if (constraint.m_static[j] == true)
-                    {
-                        if (friction.m_static[j] == true)
-                        {
-                            c->m_node->m_v = va;
-                        }
-                        c->m_node->m_v -= dp * cti.m_normal / timeStep;
-                        c->m_node->m_v = va;
-                    }
                     c->m_node->m_v -= dp * cti.m_normal / timeStep;
                 }
             }