diff --git a/libraries/entities-renderer/src/EntityTreeRenderer.cpp b/libraries/entities-renderer/src/EntityTreeRenderer.cpp
index 7b25d20ef3..4a4fd4a0d7 100644
--- a/libraries/entities-renderer/src/EntityTreeRenderer.cpp
+++ b/libraries/entities-renderer/src/EntityTreeRenderer.cpp
@@ -1107,6 +1107,17 @@ void EntityTreeRenderer::playEntityCollisionSound(const QUuid& myNodeID, EntityT
         return;
     }
     QUuid simulatorID = entity->getSimulatorID();
+    if (simulatorID.isNull()) {
+        // Can be null if it has never moved since being created or coming out of persistence.
+        // However, for there to be a collission, one of the two objects must be moving.
+        const EntityItemID& otherID = (id == collision.idA) ? collision.idB : collision.idA;
+        EntityItemPointer otherEntity = entityTree->findEntityByEntityItemID(otherID);
+        if (!otherEntity) {
+            return;
+        }
+        simulatorID = otherEntity->getSimulatorID();
+    }
+
     if (simulatorID.isNull() || (simulatorID != myNodeID)) {
         return; // Only one injector per simulation, please.
     }
diff --git a/libraries/entities/src/EntityScriptingInterface.cpp b/libraries/entities/src/EntityScriptingInterface.cpp
index 7d286a3710..e652c77d78 100644
--- a/libraries/entities/src/EntityScriptingInterface.cpp
+++ b/libraries/entities/src/EntityScriptingInterface.cpp
@@ -83,6 +83,7 @@ QUuid EntityScriptingInterface::addEntity(const EntityItemProperties& properties
             entity->setLastBroadcast(usecTimestampNow());
             // This Node is creating a new object.  If it's in motion, set this Node as the simulator.
             bidForSimulationOwnership(propertiesWithSimID);
+            entity->setSimulatorID(propertiesWithSimID.getSimulatorID()); // and make note of it now, so we can act on it right away.
         } else {
             qCDebug(entities) << "script failed to add new Entity to local Octree";
             success = false;