diff --git a/OpenVPN Adapter/OpenVPNError.h b/OpenVPN Adapter/OpenVPNError.h
index 51119f9..d054a0a 100644
--- a/OpenVPN Adapter/OpenVPNError.h	
+++ b/OpenVPN Adapter/OpenVPNError.h	
@@ -17,7 +17,7 @@ FOUNDATION_EXPORT NSString * __nonnull const OpenVPNAdapterErrorMessageKey;
 /**
  OpenVPN error codes
  */
-typedef NS_ENUM(NSInteger, OpenVPNAdapterError) {
+typedef NS_ERROR_ENUM(OpenVPNAdapterErrorDomain, OpenVPNAdapterError) {
     OpenVPNAdapterErrorConfigurationFailure = 1,
     OpenVPNAdapterErrorCredentialsFailure,
     OpenVPNAdapterErrorNetworkRecvError,