diff --git a/server/imserver/constant/constant.go b/server/imserver/constant/constant.go
index 657452d8..7a66abf2 100644
--- a/server/imserver/constant/constant.go
+++ b/server/imserver/constant/constant.go
@@ -176,3 +176,9 @@ const (
 	ERR_CODE_GUILD_API_ERROR                            = 12021
 	ERR_CODE_GUILD_NAME_TOO_LONG                        = 12022
 )
+
+const (
+	RECOMMEND_TYPE_ALL = 0
+	RECOMMEND_TYPE_BATTLE = 1
+	RECOMMEND_TYPE_RECENT_GAME = 2
+)