diff --git a/relay/controller/text.go b/relay/controller/text.go
index 59c5f637..781170f4 100644
--- a/relay/controller/text.go
+++ b/relay/controller/text.go
@@ -83,11 +83,12 @@ func RelayTextHelper(c *gin.Context) *model.ErrorWithStatusCode {
 		logger.Errorf(ctx, "DoRequest failed: %s", err.Error())
 		return openai.ErrorWrapper(err, "do_request_failed", http.StatusInternalServerError)
 	}
-	meta.IsStream = meta.IsStream || strings.HasPrefix(resp.Header.Get("Content-Type"), "text/event-stream")
-	if resp.StatusCode != http.StatusOK {
+	errorHappened := (resp.StatusCode != http.StatusOK) || (meta.IsStream && resp.Header.Get("Content-Type") == "application/json")
+	if errorHappened {
 		util.ReturnPreConsumedQuota(ctx, preConsumedQuota, meta.TokenId)
 		return util.RelayErrorHandler(resp)
 	}
+	meta.IsStream = meta.IsStream || strings.HasPrefix(resp.Header.Get("Content-Type"), "text/event-stream")
 
 	// do response
 	usage, respErr := adaptor.DoResponse(c, resp, meta)