diff --git a/Generator/SteamApiDefinition.cs b/Generator/SteamApiDefinition.cs
index eee815e..a6b557b 100644
--- a/Generator/SteamApiDefinition.cs
+++ b/Generator/SteamApiDefinition.cs
@@ -31,7 +31,7 @@ public class Param
                 public Param[] Params { get; set; }
                 [JsonProperty( PropertyName = "methodname" )]
                 public string Name { get; set; }
-                [JsonProperty( PropertyName = "flat_name" )]
+                [JsonProperty( PropertyName = "methodname_flat" )]
                 public string FlatName { get; set; }
 
             }