diff --git a/Amplify/Categories/API/Request/GraphQLOperationType.swift b/Amplify/Categories/API/Request/GraphQLOperationType.swift
index 38160a72f2..7e9e2735ed 100644
--- a/Amplify/Categories/API/Request/GraphQLOperationType.swift
+++ b/Amplify/Categories/API/Request/GraphQLOperationType.swift
@@ -6,7 +6,7 @@
 //
 
 /// The type of a GraphQL operation
-public enum GraphQLOperationType {
+public enum GraphQLOperationType: String {
     /// A GraphQL Query operation
     case query
 
diff --git a/AmplifyPlugins/Core/AWSPluginsCore/Model/GraphQLDocument/SingleDirectiveGraphQLDocument.swift b/AmplifyPlugins/Core/AWSPluginsCore/Model/GraphQLDocument/SingleDirectiveGraphQLDocument.swift
index ea5c29d342..a219bf3ad7 100644
--- a/AmplifyPlugins/Core/AWSPluginsCore/Model/GraphQLDocument/SingleDirectiveGraphQLDocument.swift
+++ b/AmplifyPlugins/Core/AWSPluginsCore/Model/GraphQLDocument/SingleDirectiveGraphQLDocument.swift
@@ -8,12 +8,6 @@
 import Amplify
 import Foundation
 
-public enum GraphQLOperationType: String {
-    case mutation
-    case query
-    case subscription
-}
-
 public typealias GraphQLParameterName = String
 
 /// Represents a single directive GraphQL document. Concrete types that conform to this protocol must