diff --git a/libraries/entities/src/EntityScriptingInterface.cpp b/libraries/entities/src/EntityScriptingInterface.cpp
index 153d9044e9..a4ec7b7636 100644
--- a/libraries/entities/src/EntityScriptingInterface.cpp
+++ b/libraries/entities/src/EntityScriptingInterface.cpp
@@ -483,6 +483,7 @@ QUuid EntityScriptingInterface::editEntity(QUuid id, const EntityItemProperties&
             }
         }
         qCWarning(entities) << "attempted edit on unknown entity: " << id << name;
+        return QUuid(); // null UUID to indicate failure
     }
     return id;
 }