diff --git a/Octokit/SimpleJson.cs b/Octokit/SimpleJson.cs
index f0557e1f..11433a62 100644
--- a/Octokit/SimpleJson.cs
+++ b/Octokit/SimpleJson.cs
@@ -1507,7 +1507,7 @@ namespace Octokit
             foreach (KeyValuePair<string, ReflectionUtils.GetDelegate> getter in getters)
             {
                 if (getter.Value != null)
-                    obj.Add(MapClrMemberNameToJsonFieldName(getter.Key), getter.Value(input));
+                    obj.Add(getter.Key, getter.Value(input));
             }
             output = obj;
             return true;