diff --git a/proxy/plan/plan_insert.go b/proxy/plan/plan_insert.go
index 1886071a..85487182 100644
--- a/proxy/plan/plan_insert.go
+++ b/proxy/plan/plan_insert.go
@@ -250,7 +250,7 @@ func handleInsertValues(p *InsertPlan) error {
 		}
 	}
 	if len(p.result.GetShardIndexes()) == 0 {
-		return fmt.Errorf("batch insert has cross slice values")
+		return fmt.Errorf("batch insert has cross slice values or no route found")
 	}
 	return nil
 }