diff --git a/src/Readarr.Http/ClientSchema/SchemaBuilder.cs b/src/Readarr.Http/ClientSchema/SchemaBuilder.cs
index 6799b7be0..8ad1ff916 100644
--- a/src/Readarr.Http/ClientSchema/SchemaBuilder.cs
+++ b/src/Readarr.Http/ClientSchema/SchemaBuilder.cs
@@ -46,7 +46,10 @@ namespace Readarr.Http.ClientSchema
             {
                 var field = fields.Find(f => f.Name == mapping.Field.Name);
 
-                mapping.SetterFunc(target, field.Value);
+                if (field != null)
+                {
+                    mapping.SetterFunc(target, field.Value);
+                }
             }
 
             return target;