diff --git a/modules/swagger-codegen/src/main/resources/swift/APIs.mustache b/modules/swagger-codegen/src/main/resources/swift/APIs.mustache
index 85cd8fa61490..495752f624da 100644
--- a/modules/swagger-codegen/src/main/resources/swift/APIs.mustache
+++ b/modules/swagger-codegen/src/main/resources/swift/APIs.mustache
@@ -43,7 +43,7 @@ public class RequestBuilder<T> {
         self.isBody = isBody
     }
     
-    public func execute(completion: (response: Response<T>?, erorr: NSError?) -> Void) { }
+    public func execute(completion: (response: Response<T>?, erorr: ErrorType?) -> Void) { }
 
     public func addHeader(name name: String, value: String) -> Self {
         if !value.isEmpty {
diff --git a/modules/swagger-codegen/src/main/resources/swift/AlamofireImplementations.mustache b/modules/swagger-codegen/src/main/resources/swift/AlamofireImplementations.mustache
index 9753dfbfd34f..21791168ab2f 100644
--- a/modules/swagger-codegen/src/main/resources/swift/AlamofireImplementations.mustache
+++ b/modules/swagger-codegen/src/main/resources/swift/AlamofireImplementations.mustache
@@ -20,7 +20,7 @@ class AlamofireRequestBuilder<T>: RequestBuilder<T> {
         super.init(method: method, URLString: URLString, parameters: parameters, isBody: isBody)
     }
 
-    override func execute(completion: (response: Response<T>?, erorr: NSError?) -> Void) {
+    override func execute(completion: (response: Response<T>?, erorr: ErrorType?) -> Void) {
         let managerId = NSUUID().UUIDString
         // Create a new manager for each request to customize its request header
         let configuration = NSURLSessionConfiguration.defaultSessionConfiguration()
@@ -70,7 +70,7 @@ class AlamofireRequestBuilder<T>: RequestBuilder<T> {
 
     }
 
-    private func processRequest(request: Request, _ managerId: String, _ completion: (response: Response<T>?, erorr: NSError?) -> Void) {
+    private func processRequest(request: Request, _ managerId: String, _ completion: (response: Response<T>?, erorr: ErrorType?) -> Void) {
         if let credential = self.credential {
             request.authenticate(usingCredential: credential)
         }