Index: src/json-stringifier.h |
diff --git a/src/json-stringifier.h b/src/json-stringifier.h |
index 0b5abbcdc9e1c0303f890e3cb4d33de08ee114a7..0a453ef67f6d6404d714cf13e6a29a011014b426 100644 |
--- a/src/json-stringifier.h |
+++ b/src/json-stringifier.h |
@@ -407,6 +407,7 @@ BasicJsonStringifier::Result BasicJsonStringifier::Serialize_( |
switch (HeapObject::cast(*object)->map()->instance_type()) { |
case HEAP_NUMBER_TYPE: |
+ case MUTABLE_HEAP_NUMBER_TYPE: |
if (deferred_string_key) SerializeDeferredKey(comma, key); |
return SerializeHeapNumber(Handle<HeapNumber>::cast(object)); |
case ODDBALL_TYPE: |