diff --git a/abstraction/src/main/java/org/zstack/abstraction/sso/OAuth2PluginConstants.java b/abstraction/src/main/java/org/zstack/abstraction/sso/OAuth2PluginConstants.java
index 087bbd5129e..70f13ad02b8 100644
--- a/abstraction/src/main/java/org/zstack/abstraction/sso/OAuth2PluginConstants.java
+++ b/abstraction/src/main/java/org/zstack/abstraction/sso/OAuth2PluginConstants.java
@@ -46,4 +46,6 @@ public interface OAuth2PluginConstants {
     String ZF_PROVIDER_NAME = "zf";
     String ALI_PROVIDER_NAME = "ali_idaas_private";
     String MAX_KEY_PROVIDER_NAME = "max_key";
+    String ZIAM_PROVIDER_NAME = "ziam";
+    String LOGIN_TYPE_IAM2_ROPC = "iam2_ropc";
 }