diff --git a/internal/api/msg.go b/internal/api/msg.go
index 8e28d6c72..20e970aa1 100644
--- a/internal/api/msg.go
+++ b/internal/api/msg.go
@@ -172,7 +172,7 @@ func (m *MessageApi) getSendMsgReq(c *gin.Context, req apistruct.SendMsg) (sendM
 	log.ZDebug(c, "getSendMsgReq", "req", req.Content)
 	switch req.ContentType {
 	case constant.Text:
-		text, ok := req.Content["text"].(string)
+		text, ok := req.Content["content"].(string)
 		if !ok {
 			return nil, errs.ErrArgs.WithDetail("text is not string")
 		}