diff --git a/src/engine/ConstraintSolver.h b/src/engine/ConstraintSolver.h
index b67e10ca..cd9e5292 100644
--- a/src/engine/ConstraintSolver.h
+++ b/src/engine/ConstraintSolver.h
@@ -202,8 +202,6 @@ class ConstraintSolver {
 // Set the constrained velocities arrays
 inline void ConstraintSolver::setConstrainedVelocitiesArrays(Vector3* constrainedLinearVelocities,
                                                             Vector3* constrainedAngularVelocities) {
-    assert(constrainedLinearVelocities != NULL);
-    assert(constrainedAngularVelocities != NULL);
     mConstraintSolverData.linearVelocities = constrainedLinearVelocities;
     mConstraintSolverData.angularVelocities = constrainedAngularVelocities;
 }
@@ -211,8 +209,6 @@ inline void ConstraintSolver::setConstrainedVelocitiesArrays(Vector3* constraine
 // Set the constrained positions/orientations arrays
 inline void ConstraintSolver::setConstrainedPositionsArrays(Vector3* constrainedPositions,
                                                            Quaternion* constrainedOrientations) {
-    assert(constrainedPositions != NULL);
-    assert(constrainedOrientations != NULL);
     mConstraintSolverData.positions = constrainedPositions;
     mConstraintSolverData.orientations = constrainedOrientations;
 }
diff --git a/src/engine/ContactSolver.h b/src/engine/ContactSolver.h
index aa111f42..82b89892 100644
--- a/src/engine/ContactSolver.h
+++ b/src/engine/ContactSolver.h
@@ -453,8 +453,6 @@ class ContactSolver {
 // Set the split velocities arrays
 inline void ContactSolver::setSplitVelocitiesArrays(Vector3* splitLinearVelocities,
                                                     Vector3* splitAngularVelocities) {
-    assert(splitLinearVelocities != NULL);
-    assert(splitAngularVelocities != NULL);
     mSplitLinearVelocities = splitLinearVelocities;
     mSplitAngularVelocities = splitAngularVelocities;
 }
@@ -462,8 +460,6 @@ inline void ContactSolver::setSplitVelocitiesArrays(Vector3* splitLinearVelociti
 // Set the constrained velocities arrays
 inline void ContactSolver::setConstrainedVelocitiesArrays(Vector3* constrainedLinearVelocities,
                                                           Vector3* constrainedAngularVelocities) {
-    assert(constrainedLinearVelocities != NULL);
-    assert(constrainedAngularVelocities != NULL);
     mLinearVelocities = constrainedLinearVelocities;
     mAngularVelocities = constrainedAngularVelocities;
 }