1 files changed, 6 insertions, 3 deletions
diff --git a/js/src/vm/JSONParser.h b/js/src/vm/JSONParser.h
index 6f91391db..70ed86f58 100644
--- a/js/src/vm/JSONParser.h
+++ b/js/src/vm/JSONParser.h
@@ -255,10 +255,13 @@ class MOZ_STACK_CLASS JSONParser : public JSONParserBase
     void operator=(const JSONParser& other) = delete;
 };
 
-template <typename CharT>
-struct RootedBase<JSONParser<CharT>> {
+template <typename CharT, typename Wrapper>
+class MutableWrappedPtrOperations<JSONParser<CharT>, Wrapper>
+  : public WrappedPtrOperations<JSONParser<CharT>, Wrapper>
+{
+  public:
     bool parse(MutableHandleValue vp) {
-        return static_cast<Rooted<JSONParser<CharT>>*>(this)->get().parse(vp);
+        return static_cast<Wrapper*>(this)->get().parse(vp);
     }
 };