diff --git a/libraries/physics/src/ObjectActionTractor.cpp b/libraries/physics/src/ObjectActionTractor.cpp
index a48989be33..4235bbd616 100644
--- a/libraries/physics/src/ObjectActionTractor.cpp
+++ b/libraries/physics/src/ObjectActionTractor.cpp
@@ -397,7 +397,7 @@ void ObjectActionTractor::deserialize(QByteArray serializedArguments) {
 
     EntityDynamicType type;
     dataStream >> type;
-    assert(type == getType());
+    assert(type == getType() || type == DYNAMIC_TYPE_SPRING);
 
     QUuid id;
     dataStream >> id;