diff --git a/types/field.go b/types/field.go
index 54b3b697b..957b400f5 100644
--- a/types/field.go
+++ b/types/field.go
@@ -4,7 +4,6 @@ package types
 //
 // http://spec.graphql.org/draft/#FieldDefinition
 type FieldDefinition struct {
-	Alias      Ident
 	Name       Ident
 	Arguments  ArgumentsDefinition
 	Type       Type