diff --git a/src/js_realm.hpp b/src/js_realm.hpp
index 3870f7ce..33fde2b9 100644
--- a/src/js_realm.hpp
+++ b/src/js_realm.hpp
@@ -237,7 +237,6 @@ public:
     static void delete_model(ContextType, ObjectType, Arguments, ReturnValue &);
     static void object_for_object_id(ContextType, ObjectType, Arguments, ReturnValue&);
     static void privileges(ContextType, ObjectType, Arguments, ReturnValue&);
-    static void compute_size(ContextType, ObjectType, Arguments, ReturnValue&);
 
     // properties
     static void get_empty(ContextType, ObjectType, ReturnValue &);
@@ -296,7 +295,6 @@ public:
         {"writeCopyTo", wrap<writeCopyTo>},
         {"deleteModel", wrap<delete_model>},
         {"privileges", wrap<privileges>},
-        {"computeSize", wrap<compute_size>},
         {"_objectForObjectId", wrap<object_for_object_id>},
  #if REALM_ENABLE_SYNC
         {"_waitForDownload", wrap<wait_for_download_completion>},
@@ -1178,14 +1176,5 @@ void RealmClass<T>::privileges(ContextType ctx, ObjectType this_object, Argument
     return_value.set(object);
 }
 
-template<typename T>
-void RealmClass<T>::compute_size(ContextType ctx, ObjectType this_object, Arguments args, ReturnValue &return_value) {
-    args.validate_maximum(0);
-
-    SharedRealm realm = *get_internal<T, RealmClass<T>>(this_object);
-    auto size = realm->read_group().compute_aggregated_byte_size();
-    return_value.set(Value::from_number(ctx, size));
-}
-
 } // js
 } // realm