diff --git a/src/BulletDynamics/ConstraintSolver/btTypedConstraint.h b/src/BulletDynamics/ConstraintSolver/btTypedConstraint.h
index ea44ae4b4..b55db0c1b 100644
--- a/src/BulletDynamics/ConstraintSolver/btTypedConstraint.h
+++ b/src/BulletDynamics/ConstraintSolver/btTypedConstraint.h
@@ -66,6 +66,7 @@ enum btConstraintParams
 
 ATTRIBUTE_ALIGNED16(struct)	btJointFeedback
 {
+	BT_DECLARE_ALIGNED_ALLOCATOR();
 	btVector3	m_appliedForceBodyA;
 	btVector3	m_appliedTorqueBodyA;
 	btVector3	m_appliedForceBodyB;