diff --git a/middleware/distributor.go b/middleware/distributor.go
index 8446c7e..6d64e30 100644
--- a/middleware/distributor.go
+++ b/middleware/distributor.go
@@ -50,7 +50,7 @@ func Distribute() func(c *gin.Context) {
 				err = common.UnmarshalBodyReusable(c, &modelRequest)
 			}
 			if err != nil {
-				abortWithMessage(c, http.StatusBadRequest, "无效的请求")
+				abortWithMessage(c, http.StatusBadRequest, "无效的请求: "+err.Error())
 				return
 			}
 			if strings.HasPrefix(c.Request.URL.Path, "/v1/moderations") {