diff --git a/libraries/physics/src/PhysicsEngine.cpp b/libraries/physics/src/PhysicsEngine.cpp
index 9e75dec475..bf6e2463e5 100644
--- a/libraries/physics/src/PhysicsEngine.cpp
+++ b/libraries/physics/src/PhysicsEngine.cpp
@@ -289,7 +289,7 @@ void PhysicsEngine::processTransaction(PhysicsEngine::Transaction& transaction)
         bumpAndPruneContacts(object);
         btRigidBody* body = object->getRigidBody();
         if (body) {
-            if (_activeStaticBodies.size() > 0) {
+            if (body->isStaticObject() && _activeStaticBodies.size() > 0) {
                 std::set<btRigidBody*>::iterator itr = _activeStaticBodies.find(body);
                 if (itr != _activeStaticBodies.end()) {
                     _activeStaticBodies.erase(itr);