diff --git a/business/model/message.go b/business/model/message.go
index fb805ce31..9dd5bdc6f 100644
--- a/business/model/message.go
+++ b/business/model/message.go
@@ -62,7 +62,7 @@ type ImMessageRecord struct {
 func (*ImMessageRecord) TableIndex() [][]string {
 	return [][]string{
 		[]string{"GroupID"},
-		[]string{"CreateAt"},
+		[]string{"CreatedAt"},
 	}
 }