Index: src/bootstrapper.cc |
diff --git a/src/bootstrapper.cc b/src/bootstrapper.cc |
index d02e55f350f528743b9f8974f92198965ec696be..6f07990d18a2ae1b1744753cc16932702f67b687 100644 |
--- a/src/bootstrapper.cc |
+++ b/src/bootstrapper.cc |
@@ -2557,7 +2557,7 @@ void Genesis::InitializeGlobal(Handle<JSGlobalObject> global_object, |
{ // Install @@toStringTag. |
PropertyAttributes attribs = |
- static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY); |
+ static_cast<PropertyAttributes>(DONT_DELETE | DONT_ENUM | READ_ONLY); |
Descriptor d = Descriptor::DataConstant( |
factory->to_string_tag_symbol(), |
factory->NewStringFromAsciiChecked("Module"), attribs); |